| Subject | Date Asked |
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| Basic Algebra | 11/30/2008 |
Q: I've been given this1) Solve the below equation. 5-x/4 = 3 My teacher says to multiply everything ...
A: Ryan (5-x)/4 = 3 Your teacher is correct. By multiplying the left side of the equation by 4, the ...
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| basic math | 11/27/2008 |
Q: What are the prime factors of 700? A. 2 x 2 x 2 x 5 x 5 x 7 B. 350 x 2 C. 2 x 2 ...
A: Katelyn. The prime factors of a number are the numbers which multiply together to equal the target ...
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| Help! | 11/26/2008 |
Q: Can you please help me how to solve this equation? The answer should be in meters. 84m -48m -100m ...
A: Christine. The first thing you have to do is convert all of the units to meters. 499 cm x 1 ...
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| Math | 11/24/2008 |
Q: Solve. 5/18-13/24=
A: Tiara. 5/18 - 13/24 Step 1: Find the least common denominator for 18 and 24. The least common ...
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| recipricols | 11/23/2008 |
Q: How many 5/6ths are in 3?
A: Paul. To answer this, divide 3 by 5/6. 3 / 5/6 Step 1: Change the division sign to ...
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| 3 grade algerbra | 11/20/2008 |
Q: The Jacksons have two dogs Beau and Max. Beau is 2 years older than Max. The sum of thier ages is 16 ...
A: David. Max = x Beau = 2+x x + 2+x = 16 Step 1: Combine the left side of the equation. Result: ...
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| algebra 2 | 11/19/2008 |
Q: my name is sammy and I'm on online highschool. I need help figuring out this formula. i don't know ...
A: Sammy. I'm not sure what the 'V30' means, but all you have to do is plug in the numbers. For ...
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| 5xsquared +5=250 | 11/18/2008 |
Q: I'm trying to help my 11 year old Son with his homework but was never any good at algebra. How do we ...
A: John. 5x^2 + 5 = 250 Step 1: Subtract 5 from both sides. Result: 5x^2 = 245 Step 2: Divide both ...
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| solving equation with fractions | 11/17/2008 |
Q: -2/3(x-5)= 3/2(x+1) I know how to solve equation that are a fraction times x but how do I work with ...
A: Belinda. -2/3(x-5) = 3/2(x+1) You need to distribute the -2/3 and 3/2 through their respective set ...
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| help =] | 11/17/2008 |
Q: i cant work this out: find the value of x 1/27 - 1/3[to the power of x] 8 [to the power of 5] = ...
A: Leanne. 1/27 - 1/3^x There is no way to find the value of x, as this is not an equation. 8^5 = ...
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| prime factors | 11/16/2008 |
Q: what are the prime factors of these numbers : 99 105
A: Stacey. A prime factor is a number which cannot be divided into evenly by any other number, with ...
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| fractions | 11/15/2008 |
Q: 6over11+7over33 4over10X6over15 4over9+7over30 these questions are fractions
A: Joseph. 6/11 + 7/33 Step 1 is to find the lowest common denominator. The lowest common denominator ...
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| Order Of Operations | 11/13/2008 |
Q: My math teacher gave my class a worksheet and theres this one problem i don't get. It's order of ...
A: Bobbie. In order of operations, division comes before addition and subtraction, so we'll start ...
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| algebra 2 | 11/10/2008 |
Q: how do u solve 4 1 3 ---- - ------ = - 5x+15 x+3 5
A: Chris. 4/5x+15 - 1/x+3 = 3/5 Step 1 is to get common denominators. The common denominator of ...
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| Measurement | 11/8/2008 |
Q: 1)What is the radius of a sphere whose volume is 523 1/7 cm 3 2)2145 11/21 cm 3 3)4190 10/21 cm 3 ...
A: Gena. Volume of a sphere = (4/3)(pi)(r^3) 523.142857 cm^3 = (4/3)(3.14)(r^3) Step 1: Multiply 4/3 ...
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| Integer coefficients | 11/4/2008 |
Q: My question is how do I write this following answer using only integer coeffients? Can you help me ...
A: TR. Coefficients are the numbers in front of the variables (in this example, x). Integers are the ...
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| algebra | 11/4/2008 |
Q: given that y varies directly with x use the specified values to write a direct variation equation ...
A: Haley. y = -6x Regards, John You are comparing the two numbers. You are trying to figure out the ...
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| Polynomials and Factoring | 11/3/2008 |
Q: Simplify the following. 1.(5x^3 + 8x^2 - 4x)+(3x^2 +7x +1) 2. (4x^3 - 6x^2 +5)-(x^2 +7^2 -8x - 2) ...
A: Jerry. To answer questions 1 and 2, you need to combine the like factors. Question 3 requires that ...
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| Math- Algebra & Trig | 10/31/2008 |
Q: The length of a rectangular kitchen floor is four meters longer than its width. If the area is 8 ...
A: Mubina. Width = x Length = 4+x Area = Width x Length (4+x)(x) = 8 4x + x^2 = 8 Using the ...
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| problem solving | 10/30/2008 |
Q: Identify the units on the variable x in each of the following situtations: (1). x = fp both f and p ...
A: Jerry. When a problem asks for units, it's asking what x is being labeled as. For example, in the ...
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| fractions | 10/29/2008 |
Q: how do i work out these fractions by putting them lowest to highest. I cannot find a common ...
A: Joanne. There's an easy trick that can help you to figure out which of two fractions is larger, if ...
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| these are not homework questions | 10/25/2008 |
Q: i just need to check my work- thankyou 31. Solve: -6 ≤ 2 - 3m ≤ 7 32. Solve: ...
A: Lucy. I'll do one of the problems for you. 36. -5 < 2(2-s) + 1 <_ 9 Step 1: Distribute the 2 ...
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| how to find the value of x | 10/24/2008 |
Q: if 3X = X/2 + 10, then the value of X is?
A: Natalie. if 3X = X/2 + 10, then the value of X is? Step 1: Multiply both sides by 2. This will ...
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| math percentages | 10/22/2008 |
Q: if there are 32 girls in the 7th and they equal 20% of the fall festival how do you figure out how ...
A: Darlene. if there are 32 girls in the 7th and they equal 20% of the fall festival how do you figure ...
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| Don't Know About Scales ? ? ? | 10/14/2008 |
Q: At the ripe ol' young age of 68 I'm still in the dark about math. Boy I should've listen more in ...
A: Ray. Scales are the same as ratios. If you have a 1/5 scale, or 1:5 ratio, it means that the actual ...
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| percents | 10/13/2008 |
Q: I need some help. Ok, say you have $445 put away in the bank. The interest is 3%. How much can I ...
A: Aaron. $445 x 3% (.0025) yearly interest = $1.11. After 1 month, your amount would increase $1.11: ...
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| Reciprocal | 10/11/2008 |
Q: How do you define the word reciprocal?
A: Ash. I define the reciprocal as the 'flip-flop' of a fraction. This is the word that one of my ...
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| Area/Decimels | 10/9/2008 |
Q: A rectangle with the sides 0.05Meters x 0.3Meters, on my calculator it comes out with 0.015 as the ...
A: Shane. Technically, area is equal to length x width, so as far as I know the area would be .015 ...
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| Mathmatical Reasoning | 10/7/2008 |
Q: Why does the left to right rule mean that you don't always do multiplication before division or ...
A: Raven. This is the phrase to remember: Please Excuse My Dear Aunt Sally. P is for Parentheses, E ...
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| density | 9/28/2008 |
Q: Can you please help me? This is the problem i am havign trouble with. For each fraction decribed ...
A: Joe. a) If the numerator is larger than the denominator, then the resulting fraction is greater ...
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| Mathematics | 9/26/2008 |
Q: The average of a group of 20 numbers is 20. The average of a different group of 60 numbers is 60. ...
A: Vernon. The answer is 50. If you have 20 numbers, and the average is 20, that means the total is ...
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| fractions and construction | 9/23/2008 |
Q: How do you express the area of a kitchen floor that is 12'6" in width and 10'4" in length,in square ...
A: Angel. The first thing to do is to convert the inch measurements into fractions. 6" is equal to ...
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| word problem | 9/23/2008 |
Q: The perimeter of a rectangle is 190 ft. If the width is 15 ft. more than the length,what are the ...
A: Rich. 2L + 2W = 190 ft. W = 15 + L We can substitute (15 + L) for W in the equation 2L + 2W = ...
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| no question < Just thanks | 9/22/2008 |
Q: I have never heard of regrouping , but my second grader just came home with regrouping problems for ...
A: Alonzo. 35 + 18 In 35 + 18, you first add the 5 and 8 in the ones column. This equals 13, but you ...
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| solve and equations | 9/19/2008 |
Q: 2x-1/x+1=4/5
A: Almira. 2x - 1/x + 1 = 4/5 Step 1: Subtract 1 from both sides. Result: 2x - 1/x = -1/5 Step 2: ...
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| mixed #'s and fractions | 9/19/2008 |
Q: how do you change a mixed # to a improper fraction???
A: Valerie. Suppose you have the mixed number 1 4/5. To change this mixed number to an improper ...
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| math | 9/18/2008 |
Q: beezwax has a density of 970kg/m3...find the volume occupied by 15kg
A: Brooke. First divide 970 by 15, giving you 64 2/3 kg. Since the initial mass was divided 64 2/3 ...
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| math: variable fractions | 9/7/2008 |
Q: I can't seem to figure out the correct way to solve this problem. It says to Solve for X 1/x - 1/3 ...
A: Mike. 1/x - 1/3 = 3/4 - 4/5 Step 1: Combine the fractions on the right side of the equal sign. ...
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| math | 9/5/2008 |
Q: how do u change a percent into a fraction?
A: Alondra. We'll use 25%. Step 1 is to move the decimal point two places to the left, making it a ...
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| 3rd grade math | 9/3/2008 |
Q: my son age 8, 3rd grade, is having problems with math, he sees things in black and white...he reads ...
A: Gordon. The only websites I can think of immediately are quickmath.com and Ask Dr. Math. Dr. ...
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| college math | 9/2/2008 |
Q: how would u solve 1/4X2-3/2X-7/4=0
A: Alexis. 1/4X2-3/2X-7/4 = 0 Step 1: Multiply 1/4X and 2 together. Result: 1/2X-3/2X-7/4 = 0 Step ...
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| simplify expressions & like terms | 9/1/2008 |
Q: simplify each expression by removing the parentheses & combine like terms: 1/4(6b+2)-2/3(3b-2)
A: Lisa. Use the distributive property to distribute the 1/4 and 2/3 through their respective set of ...
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| proof | 8/31/2008 |
Q: How do you prove distributive law for negative numbers a*(b+c)=a*b+a*c a,b,c are negative
A: Sahar. This can be proved by substituting negative numbers for a, b, and c. Let a = -1, b = -2, ...
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| absolute value | 8/27/2008 |
Q: I have an equation that I just can't figure out. The absolute value of 1-2/x=5 Can you help me by ...
A: Kim. The quadratic formula would not apply to this question. The quadratic formula is useful when ...
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| absolute value | 8/27/2008 |
Q: I have an equation that I just can't figure out. The absolute value of 1-2/x=5 Can you help me by ...
A: Kim. absolute value of 1 - 2/x = 5 1 - 2/x = 5 Step 1: Subtract 1 from both sides. Result: -2/x ...
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| reciprocal | 8/26/2008 |
Q: How do I do reciprocal that is not a fraction what if it reads something like this 2^ or 2pie : ...
A: Anthony. All integers or irrational numbers can be written as fractions by writing the number over ...
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| Math | 8/25/2008 |
Q: How do I get the average of a goup of times? EX. Average running time for 10 runners at the same ...
A: Matthew. Add the times, and then divide by the sample size. In your example, you would divide by 10 ...
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| ratios | 8/24/2008 |
Q: I need to work out the ratio of 8,000 and 14,000 in the simplest form. please help as my mind has ...
A: Catherine. Reducing ratios is accomplished by dividing each side of the ratio by the same number. ...
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| algebra | 8/22/2008 |
Q: 3*T*Q/R=12 SOLVE FOR T
A: Darneshia. 3xTxQ/R = 12 Step 1: Multiply 3 and T together. Result: 3T x Q/R = 12 Step 2: ...
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| Math | 8/21/2008 |
Q: List the factors of 51,31,15,23
A: Ashley. Finding factors of a particular number requires multiplying that number by 1, 2, 3, etc. ...
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| algebra question | 8/15/2008 |
Q: 3/5+2x/9=5/6, then evaluate (x-1)2. that is squared. thanks
A: Michele. 3/5 + 2x/9 = 5/6 In order to evaluate (x-1)^2, we obviously need to solve for x. 3/5 + ...
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| mathematic | 8/12/2008 |
Q: please tell me about faster mathematics. thank you
A: Samad. Doing mathematics quickly in one's head requires much practice and a God-given ability to ...
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| Percents | 8/6/2008 |
Q: Is there a single formula for figuring out all types of percent problems? Thanks, Jim
A: Jim. There are many different types of percentage problems. I will give you two examples. 1) Price ...
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| Rational Equations | 8/6/2008 |
Q: Can you help me solve the following? Solve the following rational equation for X: 2 + x ...
A: Amanda. 2/x+2 + x/x+2 = 2x/2+x Step 1: Add the first two fractions. Addition is possible because ...
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| Rational Expression. | 8/5/2008 |
Q: I am getting back into school, and I don't remember lots of stuff. Go figure, huh? Anyways, here's ...
A: Justin. To answer this question, you need to factor each side of the fraction. r^2-5r+6 / r^2-4 ...
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| algebra | 7/28/2008 |
Q: they told me to evalute 7/16 + 4/32 - 36/64
A: Veronica. To answer this, all denominators must be the same. The LCD (least common denominator) for ...
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| value of x | 7/17/2008 |
Q: -1/2 x=-2/3
A: Kenny. -1/2x = -2/3 To solve this problem, we need to get the x factor by itself. We accomplish ...
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| Unit Conversion | 7/8/2008 |
Q: I tutor a 5th grader, and he doesn't understand unit conversion well. I'm only a high school ...
A: Kelsey. Let's say you want to know the number of quarts there are in 7 gallons. You need to know ...
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| percents | 7/5/2008 |
Q: what is 1 % of a hundred and whats the easiest way to caluate %
A: Art. 1% of 100 is 1. To calculate percentage, divide. If you want to know what percentage 8 is of ...
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| word problem | 6/28/2008 |
Q: Nathan has 2 brothers, conner and josh. If we add 2 to conner's age, it is exactly 1/2 the age of ...
A: Viola. Nathan = N Conner = C Josh = J 2 + C = 1/2(12) (2 + Conner's age = 1/2 Josh's age.) 2 + ...
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| ercentage Variance | 6/27/2008 |
Q: Hope you can help!! What is the formula to work out a production variance percentage eg: Forecast ...
A: Rebecca. Since the actual amount is 1650 (150 above the forcasted amount), you need to divide 150 ...
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| Math in your head | 6/26/2008 |
Q: I already can do math in my head, but when it comes to division, it takes a little longer than ...
A: Patrick. I find that when I try to do division in my head I usually just divide it as is, without ...
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| Quad Formula | 6/25/2008 |
Q: How would you solve for this equation? 5x^2 = 43x - 24 I know the answer is (3/5,8), but I don't ...
A: Sara. x = -b +/- sqrt (b^2 - 4ac) / 2a 5x^2 - 43x + 24 = 0 a = 5; b = -43; c = 24 x = 43 +/- ...
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| algebra | 6/24/2008 |
Q: how do i work out this problem i am having trouble? -3=c-8 this is solving equations by adding or ...
A: Melanie. -3=c-8 Step 1 is to add 8 to both sides of the equation. We want to get the c factor by ...
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| Help with an equation | 6/23/2008 |
Q: I am stuck on this one. The problem is 3.5c-c=630. I am at a lost as where to even start! It would ...
A: Amy. 3.5c - c = 630 Since we are solving for 'c,' we need to combine the c factors together. This ...
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| Functions | 6/16/2008 |
Q: Im studing to take a compass placement test and i totally forget how to solve this... if f(4)=0 and ...
A: Kimberlee. For 3x-12 to be the correct answer, it means that when x = 4, 3x-12 will equal 0. ...
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| math(rates) | 6/7/2008 |
Q: 2 1/2 inches per minute,240 inches per hour, 1/4 foot per minute; which is fastest
A: Aisha. 240 inches per hour is the fastest rate. 1/4 foot is equal to 3 inches (12 inches/foot x ...
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| Slopes | 6/5/2008 |
Q: thank you
A: Kimberly. Slope is the measure of the 'rise over run' of a line. It is the 'm' in the equation of ...
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| Fractions from time | 5/31/2008 |
Q: Zalewski, And God bless you.. I've had such a torturous time with fractions and decimals ...
A: David. Since there are 60 minutes in an hour, if an employee shows up 15 minutes late, then they ...
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| 4th grade math | 5/30/2008 |
Q: my math question is when you change inches to miles?
A: Mercedes. Let's suppose you have 101,376 inches. We want to convert that amount to miles. 101,376 ...
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| Dividing Fractions | 5/29/2008 |
Q: I'm 12 years old and in the sixth grade can you tell me how to divide fractions
A: Melina. Let's try 1/3 / 2/7. Step 1 is to take the reciprocal of the second fraction. The ...
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| stat | 5/20/2008 |
Q: advantages of median
A: Naeem. I am sorry for taking so long to respond. Suppose you have twenty grades from a math test. ...
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| appreciation | 5/20/2008 |
Q: The value of a house at the end of 8 years was $189,000.What was original cost to the nearest ...
A: Lynn. I am sorry for taking so long to respond. We know that this particular house appreciates ...
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| algebra | 5/19/2008 |
Q: how do you solve y=2x-10 and y=4x-8
A: Jasmine. y = 2x-10 y = 4x-8 To solve this problem, we need to use substitution. Since we know ...
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| math question | 5/16/2008 |
Q: Tellwhether each equation represents direct variation between x and y. y=9/10x y=xy-8 y/x=8.25 x=y
A: Alyssa. Direct variation means that as the value of x (or y) changes, the value of the other will ...
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| percentages | 5/13/2008 |
Q: i don't get how to do this at all so I'm going to ask you a couple of questions! 69 is what percent ...
A: Aaleah. When it asks for percent, you need to divide. 69 is what percent of 92 is solved by ...
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| value of x | 5/10/2008 |
Q: Find the value of x: x divide 7/8 = 3/5
A: Debbie. x / 7/8 = 3/5 Step 1: Take the reciprocal of 7/8 and change the division sign to ...
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| Metric measures | 5/7/2008 |
Q: I have forgot all the ratios of metric measures and help
A: Derick. Some of the more common ratios are shown below: 1000 millimeters = 1 meter 100 ...
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| writing equations | 5/7/2008 |
Q: Ian & Michael together weighed 48 pounds. Ian weighed two pounds more than Michael. How much did ...
A: Anthony. x = Ian y = Michael x + y = 48 y + 2 = x We see that x = y + 2 in the second ...
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| Percentages | 5/6/2008 |
Q: Just read that 1 out of 100 = 1% Also, that .01 = 1% Why the confusion? For example if I was to ...
A: Claude. Percentage is 'out of 100.' Therefore, 1 out of 100 is 1 percent. To convert a percent to ...
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| standard form of a line | 5/5/2008 |
Q: find the equation of a line that is parallel to the line x+y=4 and passes through 2,5. The answer ...
A: Andrea. Step 1 is to find the slope of the given line. Written in slope-intercept form, x+y=4 ...
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| fractions | 4/29/2008 |
Q: I have a problem that goes like this. 3/9 x 2/9 = what?
A: Jossie. 3/9 x 2/9 To solve this problem, you need to multiply the numerators together, and also ...
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| slopes | 4/16/2008 |
Q: does every horizontal line have an x-intercept? why or why not?
A: Chel. Horizontal lines do not have x-intercepts. Horizontal lines do not pass through the x-axis; ...
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| 2 + 2 / 2= ? | 4/14/2008 |
Q: I'm from the UK and have been a friendly argument at work with European colleagues to the answer to ...
A: Andy. 2+2/2 The answer is 3. To solve this problem, we need to know what the order of operations ...
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| ratio to simplest form | 4/13/2008 |
Q: my two problems I need detail info on how to solve these prblems im confused 10 to 8 and 21:7
A: Victoria. To get these ratios into their simplest forms requires that we divide. The ratio 21:7 ...
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| math | 4/13/2008 |
Q: can you tell me step by step how to divide a fraction
A: Blanca. We'll use the fraction 3/5, and divide it by 2. 3/5 / 2/1 Step one is to take the ...
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| fractions | 4/8/2008 |
Q: I am wondering how to solve a question such as ( 3 )^-2 - --- 4 (that is negative 3/4 in ...
A: Daniella. Your teacher is correct. When you see a negative exponent, you flip the number, and then ...
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| percentage markup | 4/2/2008 |
Q: If the original price of an item is 39.00 and the new price is 44.85, what is the percent of the ...
A: Jayne. To solve this problem, we need to first subtract 39 from 44.85, giving us 5.85. Next, we ...
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| Solve for x | 4/1/2008 |
Q: How do you solve 3/x+4-7=-4/x+4 (x does not equal -4)
A: Debi. 3/x + 4 - 7 = -4/x + 4 Step 1: Combine 4 and -7 on the left side of the equation. Result: ...
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| algebra | 3/30/2008 |
Q: there are 5 students running for 3 student government positions: president vice-president and ...
A: Aaron. Since you are filling three government positions out of a total of five students, you need ...
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| math-reciprocals | 3/30/2008 |
Q: If you have a mixed number,how would you find the reciprocal of it?
A: Jeneisha. Let's use the mixed number 5 4/9. The first step is to convert the mixed number into an ...
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| solving propotions from triangle | 3/30/2008 |
Q: Please let me know how tosolve proportions problems from the triangle and and the rectangle .Suppose ...
A: Mike. For the large rectangle, we have sides of 12 ft. and 4 ft. Therefore, the larger side is 3 ...
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| algebra | 3/29/2008 |
Q: the slope of -5 : THE Y INTERCEPT IS 7. WRITE AN EQUATION OF THE LINE IN SLOPE INTERCEPT FORM. i ...
A: Rose. The equation of the line is y = mx + b, where m is the slope, x is the x-intercept, and b is ...
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| Algebra | 11/28/2007 |
Q: Could u please help me. Ive had several attempts and keep getting 6-6x-3x². Help Please. Asap. show ...
A: Katie. The first step is to multiply the first two parentheses together. (x-1)(x-2) Result: ...
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| what to know | 11/14/2007 |
Q: what is the mark on a ruler that is every 19 3/16 used for
A: Josh. The small black diamonds every 19.2 inches are called 'black truss' markings. Trusses are ...
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| algebra 1 | 11/10/2007 |
Q: write the equation so that y is a value of x? 8x-5x+21=36-6y
A: Cassie. Step 1: Combine the 'x' terms. Result: 3x + 21 = 36 - 6y (8x - 5x = 3x). Step 2: Subtract ...
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| work problem | 11/9/2007 |
Q: if it takes 24 machines to complete the work in 6 days how many machines would it take to complete ...
A: Darren. I also had difficulty figuring out an equation. However, I believe the answer is 288. We ...
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| fractional weight measurements | 11/4/2007 |
Q: How do I convert ounces into fractional weight amounts? Example the only one I know is .5 lbs equals ...
A: Janet. Since we know that .5 lbs is equal to 8 ounces, then we also know that 1 lb is equal to 16 ...
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| algerbra | 11/1/2007 |
Q: how do you solve problems like this y=4xto the 2 power if you have to use a table to graph each ...
A: Antoinette. Substitute a value for x; use it to solve for y. (You can also start by subtituting for ...
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| Math | 11/1/2007 |
Q: I am trying for my GED and the Math is really hard for me. I am now on fractions. I am doing ...
A: Joyce. My mind's a little blank right now so I'm having difficulty thinking of a problem to show ...
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| tape measure | 10/19/2007 |
Q: on a tape measure what are the little diamonds every 19 3/16 in. for?
A: Rich. The small black diamonds every 19.2 inches are called 'black truss' markings. Trusses are ...
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| finding what x is | 10/17/2007 |
Q: how do i find the value of x 20:400=x:1680 your help is is a blessing,THANK YOU
A: ChrisrK1981. To solve this, first divide 400 by 20, giving you 20. This tells us that 400 is 20 ...
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| Math problem that I NEED help on | 10/16/2007 |
Q: In a room, there are 10 creepy creatures with a total of 68 legs. Some are 6-legged cockroaches. The ...
A: Courtney. Make x = the number of cockroaches. Make y = the number of tarantulas. We can then make ...
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| algebra and linear equations | 10/15/2007 |
Q: i am having horrible problems with the following porblem. My teacher is no help either. Find the ...
A: Bryon. The first thing to do is solve for the slope of the line. We need to solve both for the ...
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| find a difference | 10/9/2007 |
Q: how do i find the difference between the given numbers of 2/5 and 7/2?
A: Melissa. The first step is to find the least common denominator. The least common denominator is ...
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| Solving for y | 10/7/2007 |
Q: I am stumped on these problems on solving for y. Can you please help me? xyz=c 3xy= G ...
A: Chena. In each case, y is being multiplied by something else. To solve for y, you need to divide by ...
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| math problem on ratio/magnification | 10/6/2007 |
Q: My son is attempting to determine the magnified size of the Golgi Apparatus for his biology ...
A: Rich. .0028 meters is the correct answer. We begin with the cell being 10 micrometers in ...
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| Help Itz Math | 10/4/2007 |
Q: Hi well I have problems rememberin math stuff and the thing I was askin wat an easier way to ...
A: Jasmin. To change a percentage into a fraction, you need to understand that percentage means 'out ...
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| Linear Inequalities | 10/4/2007 |
Q: A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 ...
A: Sean. Basic Rental: 50 + .2x Roadrunners: 20 + .5x 50 + .2x < 20 + .5x 50 < 20 + .3x 30 < .3x ...
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| 6th grade math | 10/2/2007 |
Q: I am trying to help my 6th grade math problem. 7x-2=24 ANSWER: Hello, Lee. 7x-2=24 Step 1: Add 2 ...
A: Lee. 7x-2=24 Adding 2 to both sides eliminates the -2 on the left side of the equal sign. We want ...
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| Percentages | 10/2/2007 |
Q: I have 17 heirs to distribute $155,188.76 to. I have 4 heirs to receive 1/64 (.015625), 5 heirs to ...
A: Vicki. Since the percentages do not add up to 100, you cannot distribute all of the money. The way ...
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| How to calculate a straight lines "equation" | 10/2/2007 |
Q: I am not sure what area of math my question conserns but i belive it is "functions". Now if i have X ...
A: Mikko. If the straight line crosses the number 5, and is parallel to the x-axis, then the equation ...
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| find value of x | 9/30/2007 |
Q: 1. 3x + 5 = 2x + 13 2. x/5 = x/6 + 1 3. 13x + 14 = 12x - 5 4. 5/x = 10/3x + 4 5. 5x - (2x - 10) = 35 ...
A: Sean. I will answer one question, since I assume this is homework. Question 3: 13x + 14 = 12x - 5 ...
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| soh cah toa in my calculator! | 9/27/2007 |
Q: I know this may be a silly question but I'm really having a problem! It's been about 5 years since ...
A: Kate. SOH CAH TOA has to do with trigonometry. Namely, SOH stands for sine-opposite-hypotenuse; CAH ...
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| how to solve a problem? | 9/27/2007 |
Q: Can you please help me to solve this problem I don't have a clue how to solve it. Thank you. ...
A: Sandra. The first step is to add the mixed numbers together. To do this, it's easier to first ...
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| math- multi step eauations | 9/21/2007 |
Q: 6-t/4=8+t/2
A: Andrew. 6-t/4 = 8+t/2 Step 1: Multiply both sides by 4. Result: 6-t = 32+4t/2 Step 2: Multiply ...
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| help me please! | 9/20/2007 |
Q: okay, it says to grapg each point, one of the problems is: A(2,-1) how do u do that?
A: Karen. Start at the origin (where the x- and y-axes intersect). The first number is the "X" value; ...
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| HELP ME PLEASE | 9/19/2007 |
Q: i was just wondering if you could help me out on this one algebra problem.. i've done the others but ...
A: Romina. -x/3 - 5 = 2x Step 1: Multiply both sides by 3 to eliminate the fraction. Result: -x - ...
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| Math Combinations.....and Hold em Poker | 9/16/2007 |
Q: First, my compliment to you for helping out answering math questions. I grew up fearing arithmetic ...
A: Jack. The equation to use is n! / r!(n-r)! 6 x 5 x 4 x 3 x 2 x 1 / 2 x 1 (6-2)! This gives us ...
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| ratio | 9/10/2007 |
Q: In a bag ther are blue marbles and red ones.2/3 of the marbles are blue and 3/5 of them are ...
A: Zaki. It appears that either there is a problem with the question itself, or I am setting up a ...
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| mental math | 9/6/2007 |
Q: My question is: "Describe two ways to add 1,820 + 230 mentally" I can only think of one way. I'm ...
A: Noah. You can start from the right and add, as addition is normally done. However, this problem can ...
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| math :( | 9/5/2007 |
Q: -what are the factors of 1? ...... and what are really good facts about the number 1?
A: Kristina. The only factor of 1 is 1. No other number can possibly divide evenly into 1. The number ...
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| Decimals | 9/4/2007 |
Q: I am in 5th grade and doing <, =, and > for decimals in my math class. The teacher handed out a ...
A: Bailee. Decimals which are further from the number one are smaller than those which are closer to ...
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| math | 9/3/2007 |
Q: whats a rate?
A: Syasia. According to the dictionary, a rate is "a quantity measured with respect to another ...
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| mathmatics | 9/3/2007 |
Q: how do you change percent into decimal fraction
A: Roseann. Let's start with 50 percent. To change this percent into a decimal, move the decimal ...
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| Texas Hold'em probability question | 9/3/2007 |
Q: Mr. Zalewski: I am playing Texas Hold'em and hold an ace of spades and a king of hearts. It is ...
A: Rob. According to http://cardgamerules.homestead.com/Poker_Odds.html, the odds of receiving a ...
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| Powers | 8/27/2007 |
Q: Why does any number to the power of 0 equal 1. I am looking for a simple way to explain this to my ...
A: Darin. The answer can be found if you solve for the first three exponents of any given number. For ...
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| Unit Fractions | 8/15/2007 |
Q: How do you add unit fractions like for example: 1/12 + 1/6 + 1/4 + 1/3 ?
A: Miki. The first step is to get the lowest common denominator. The lowest common denominator is the ...
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| percentage to fraction | 8/10/2007 |
Q: How do you convert 33% & 9% into a fraction and are there any percentages that remain with the ...
A: Joanne. The first step is to recognize that percentage means 'out of 100.' 33 percent, then, means ...
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| math | 8/5/2007 |
Q: (x+3)(x+4)=
A: Stan. You need to use the FOIL method. (First, outside plus inside, last.) First, you multiply the ...
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| standard form | 7/27/2007 |
Q: show me the the steps and teach me how to put this in standard form y=4x+1
A: Ebby. I believe you are talking about the standard form of a line (equation of a line). The ...
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| maths subject | 7/16/2007 |
Q: I am trying to find out the name of a particular mathematics subject. But I do not know what it is ...
A: Markson. That math subject is called an arithmetic sequence. That is, each new number increases by ...
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| math | 6/26/2007 |
Q: After working 4 hours, Frank has made 21 machine parts. At the same rate, how many parts can he make ...
A: Shel. To answer this question, let's make a ratio. 4/21 = 7/x (In 4 hours, 21 parts were made. We ...
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| dimensional analysis | 6/24/2007 |
Q: two seemingly easy problems. but i just cannot get the right answers using dimensional analysis. ...
A: Allison. 3.75 micrometers/second x 3600 seconds/hr = 13500 micro/hr (The 'seconds' cancel each ...
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| x-Intercept | 6/24/2007 |
Q: If a line has an x-intercept, how many does it have? Explain.
A: Carolyn. It depends. If it's a straight line (no exponents in the equation of the line), it will ...
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| Math | 6/12/2007 |
Q: Jim is able to sell a hand-carved statue for $670 which was a 35% profit over his cost. How much did ...
A: Isaac. Make the original cost equal to 'x.' The statue was sold for $670, which was a 35% profit ...
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| Math | 3/7/2007 |
Q: Regular burgers cost $1.75 less than super burgers. Tow regular burgers and one super burger cost ...
A: Rebekah. Make super burgers equal to x. Therefore, regular burgers will be x - $1.75. Two regular ...
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| Square Root | 3/3/2007 |
Q: I was just wondering why is the square root of a positive number always taken as the positive value? ...
A: Yuenho. You are correct in saying that -2 is a square root of 4. However, unless the problem ...
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| math/writing equations | 2/22/2007 |
Q: Here is a problem that I made up. I am hoping that you can tell me the answer and go through it ...
A: Lissy. Step 1 is to add the costs of each purchased menu item. Adding these figures gives you a ...
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| Weighted Average | 2/14/2007 |
Q: Please give a brief explanation of how does the weight given for various grades affect the end ...
A: Frank. Suppose you have five tests during the course of the year. These tests make up your grade. ...
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| fractions | 2/11/2007 |
Q: I don't know how to multiply to fractions with different denominators please help ,Leah
A: Leah. Let's try an example: 3/8 x 2/7. To multiply, all you have to do is multiply the two ...
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| Negative Numbers | 2/7/2007 |
Q: Can we use negative numbers in real-life situations ? If its possible can u give me an example?
A: Kassarin. Essentially, any time money is owed, it is a negative number. If my friend is in debt 85 ...
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| subtraction & regrouping | 2/3/2007 |
Q: My granddaughter is in 3rd grade and working on subtraction. Her problem regards subtracting 3-digit ...
A: Patrick. You are welcome. Regrouping means that you 'take one' from the column to the left, and ...
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| Convert | 2/1/2007 |
Q: 1. How to convert 29.53% to decimal? 2. How to convert 17/25 to a percent? 3. How to convert 39/8 to ...
A: Marie. 1. Move the decimal point two places to the left and remove the percentage sign. Doing this ...
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| Solving math problems | 1/27/2007 |
Q: .I enjoy math so here it goes..I dont get how they get the answer of how many police men are on the ...
A: Jason. "Suppose that in Drag Strip City, 9 policemen can write 4 tickets for speeding in 8 ...
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| math | 1/24/2007 |
Q: if 7x +2a=3x+5a than x is equivalent to ?
A: Ashley. x = 3/4a 7x + 2a = 3x + 5a Step 1: Subtract 3x from both sides. Result: 4x + 2a = 5a ...
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| adding fractions with different bottom numbers | 1/23/2007 |
Q: I need help adding fractions with different bottom numbers and if they can be reduced also, I just ...
A: Lisa. Let's take an example: 2/9 + 2/6. We have two different denominators, so we need to make ...
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| decimals and ratios | 1/22/2007 |
Q: I am working on a GED book and I need help with decimals and ratios. I am dyslexic. So, I tend to ...
A: Sue. You missed 5 questions: 1) Rounding 45.1578 to the nearest hundredth. 1) Rounding 123.2455 ...
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| Mental Math | 1/22/2007 |
Q: I read that you can help people do math quicker in their heads. i'm in high school now and my ...
A: Samantha. Let's take an example, say, 58 x 75. Since 58 is close to 60, we can solve for 60 x 75 ...
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| 6th Grade math | 1/3/2007 |
Q: My son was out sick for the week before the holiday break so my sons math teacher give him several ...
A: Larry. All you have to do for these questions is substitute each value for x. Evaluating 17x is the ...
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| Math | 12/17/2006 |
Q: Yeah these are not homework questions. I am home schooled and my parents are not good at math, and ...
A: Ronnie. I'm sorry for taking so long to respond. The inequality sign does reverse whenever ...
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| change percent into fractions | 12/16/2006 |
Q: I would like to know how do I change 6% into fraction and show the steps you take.
A: Marie. There are two ways to do this. One way is to start by converting the percent into a ...
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| fractions | 12/15/2006 |
Q: H ow do u divide fractions.
A: Brett. Let's take an example, say, 2/3 divided by 1/5. 2/3 / 1/5. Step 1 is to take the ...
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| pleasee help!! | 12/7/2006 |
Q: use the quadratic formula to solve the equation 5x(squared)+23x-10=0
A: Lisbet. a = 5 b = 23 c = -10 x = -b +/- sqrt (b^2 - 4ac) / 2a x = -23 +/- sqrt (23^2 - 4 ...
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| some math odds and ends | 12/1/2006 |
Q: Because you are so good at explaining things and I learn from it I have a few more questions. When I ...
A: Ronnie. 1. There is no variable in question 1, so there is nothing to solve. 2. 16.8/y = 7.2/4.2 ...
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| How do u change fractions? | 11/28/2006 |
Q: How do you change a mixed fraction into an improper fraction?
A: Asia. Let's look at an example: Change 5 2/7 into an improper fraction. Step 1 is to multiply the ...
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| Simplifying leaving no exponents | 11/22/2006 |
Q: I need to simplify leaving no exponents in the denominator. I do not know how to do this, and I cant ...
A: Ronnie. These questions demand that you 'expand' the numbers. 5^3 is the same as 5x5x5. 5^10 is ...
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| Variable Expressions | 11/20/2006 |
Q: Write a variable expression to find the number of centimeters in x meters. Write a variable ...
A: Jon. Variable expressions are a way of using variables (letters) and numbers in sentence form ...
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| NEGATIVES AND POSITIVES | 11/19/2006 |
Q: when you add negatives together would it be a negative? when you subtract a negative from a negative ...
A: MAI. -5 + -2 changes to -5 - 2, or -7. -5 - 2 stays at -5 - 2, or -7. Adding negatives together ...
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| substitution | 11/12/2006 |
Q: I need help with the basic steps os substitution e.g 5(x-1)-2(1-x)=4(x-2)-2
A: Lucky. 5(x-1)-2(1-x)=4(x-2)-2 Step 1 is to distribute. That is, multiply the 5, -2, and 4 through ...
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| United States History | 11/11/2006 |
Q: I want to know how to convert... 1 quart to ounces 3 cups to ounces 8 ounces to tablespoons 3 ...
A: Gul. 1 quart is 32 ounces. 3 cups is 24 ounces. 8 ounces is 6 tablespoons. 3 gallons is 24 ...
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| math | 11/10/2006 |
Q: why should we even care about math? math is so freakin' stupid, and i cant stand it. i fall aasleep ...
A: Jake. Being skilled at math is something that will benefit you over the course of your life. ...
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| I want to say these numbers | 11/6/2006 |
Q: I want to say these numbers like 900 quadrillion?is this 900 quadrillion? 9,000,000,000,000,000,000 ...
A: James. You wrote the number 9 quintillion. 900 quadrillion is 900,000,000,000,000,000. The next ...
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| graphing by intercepts | 11/5/2006 |
Q: tanks so much for the help..one more question,how would youp lot -5/2 on a graph? with the equation ...
A: Roxann. The equation of the line is in the form y = mx + b, where y is a positive number. Because ...
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| graphing by intercepts | 11/1/2006 |
Q: how do i start to graph by intercepts? i am having a lot of trouble in algebra.is there any way you ...
A: Roxann. Graphing by intercepts requires that you solve for both the x-intercept and y-intercept. ...
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| percentage. | 10/30/2006 |
Q: I have a score of 69.75% which is 80% of the final grade, then 97.14% which is 15% I also have ...
A: Kaz. Your score is around a 74% (73.871%). To solve this, use multiplication. (69.75 x .8) + ...
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| dimensions | 10/28/2006 |
Q: How do u find a rectangle's dimensions?
A: Karlee. The word 'dimensions' means the same as 'measurements.' To find a rectangle's dimensions, ...
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| Poker Question | 5/7/2006 |
Q: I want to know what my average placement percentile is. By this I mean I want to know how good I am ...
A: Gregg. Percentile is the proportion of other scores that your score equals or exceeds. Your ...
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| change mixed number to improper fraction | 5/1/2006 |
Q: 6 2/5 . 4 3/7= answer please
A: Nora. 6 2/5 Step 1: Multiply the denominator of the fraction with the whole number. Result: 30 (5 ...
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| Stupid question | 4/26/2006 |
Q: If a bag of ice weighs 5 pounds, when it melts, does the liquid volume also weigh 5 pounds? Thank ...
A: Tom. The resulting ice water will weigh 5 pounds. This answer is based on the law of conservation ...
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| Hi John,
Could you tell me... | 4/6/2006 |
Q: Could you tell me how long it would take to pay off a credit card balance of $1000, if you pay the ...
A: Shelly. $35 a month paid is equivalent to $420 a year. After the first year, $580 will be left on ...
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| Algebra | 4/4/2006 |
Q: How do I simplify sums and differences of square root radicals?
A: Michelle. If the sum or difference is a perfect square, then the answer to the problem is the ...
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| Digit Word Problems | 4/4/2006 |
Q: I need help learning how to solve digit word problems. For an example: The units digit of a ...
A: Nicole. I am sorry for taking so long to respond. This question involves a little bit of guessing. ...
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| Can you folks help me with... | 4/3/2006 |
Q: Can you folks help me with a little bit of math. This has to do with a specification of printing ...
A: Dave. I believe this problem calls for division. For the first opacity, you have 91.79%. This is ...
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| Fractions | 3/29/2006 |
Q: Ashamed to admit that I just don;t get fractions..my nephew is in 2nd grade and this is his ...
A: Cotu. Fractions = Part/Whole. Question 1 asks you what fraction of the children are girls. ...
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| fractions | 3/27/2006 |
Q: how would I DO PROBLEMS LIKE A FRACTION TIMES A WHOLE NUMBER?
A: Alicia. Whole numbers can be written as fractions. 5 is equal to 5/1. 5 x 3/4, for example, is the ...
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| algebra | 3/20/2006 |
Q: how to solve |G-3|>2
A: Wytashe. I am sorry for taking so long to respond. To do this problem, you need to divide the ...
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| ratios and proportions 1/7 =x/4 1/2 | 3/19/2006 |
Q: 1/7 =x/4 1/2
A: Camille. I'm assuming the question reads 1/7 = (x/4)(1/2). Step 1: Multiply the two fractions ...
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| Fractions | 3/18/2006 |
Q: (3 X unknown number) + (4 X unknown number) = 18 Answers: 2 and 3 (3 X 2) + (4 X 3) = 6 + 12 = 18 ...
A: Anonymous. I don't understand your logic. As written, the problem should read: 3x + 4x = 18. The ...
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| Fractions | 3/16/2006 |
Q: I dont know how to do fractions or presents. Can you help me? Thanx i really need help also on ...
A: Abbey. These subjects are very broad. I will try to give you some of the basics, and if you need ...
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| Algebra | 3/16/2006 |
Q: solving for x -2x^2+16=24 what is the x in this equation?
A: Monica. -2x^2+16=24. -2x^2 = 8 (subtract 16 from both sides). x^2 = -4 (divide both sides by -2). ...
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| fractional equations | 3/15/2006 |
Q: how do you solve 4x-3 = 17 ----- ---- x x
A: Jaime. Any time you have fractions equal to each other, solve by cross-multiplying. Step 1: ...
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| math | 3/11/2006 |
Q: Praise the Lord John: A refinery buys four times as many barrels of sweet crude from Texas than ...
A: Wanda. Barrels of crude from Canada = X. Barrels of crude from Texas = 4x (4 times as many). ...
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| ratio | 3/7/2006 |
Q: i am 8th grade how do you do this
A: Rachel. A ratio is a comparison of two numbers. Suppose a person has 3 envelopes, 5 pencils, 6 ...
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| mental computational qestion | 3/3/2006 |
Q: a truck can hold 1000 (one thousand) litre of petrol . it want to transfer as many as it can to a ...
A: Nabil. Zero. The truck holds 1000 liters, and it needs to travel 3000 kilometers. Every kilometer ...
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| word problems - multiplying/dividing fractions | 2/27/2006 |
Q: .. My son is in 5th grade and is learning how to multiply and divide fractions. He has no problem ...
A: Pegi. Since there are various types of word problems for that age level, it would be impossible for ...
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| math | 2/23/2006 |
Q: greyson has 3 hundreds, 5 tens, 3 ones blocks. How shoul he regroup to subtract 171?
A: Darryl. I am sorry for the delay. 3 hundreds, 5 tens, and 3 ones is equal to 353. 353 - 171 = ...
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| Rational Expressions | 2/20/2006 |
Q: I am having a problem with rational expressions (1) 2a^2-ab-b^2 a^2-b^2 ...
A: Felicia. I am sorry for the delay in responding. Question 1 requires that you factor. ...
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| 10,12,15 whats there lowest commen multiple | 2/15/2006 |
Q: whats there lowest commen multiple?
A: Marry. The answer is 60. The lowest common multiple is the smallest number in which 10, 12, and 15 ...
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| Inverted Fractions | 2/12/2006 |
Q: Sarah's age is 2/3 of Mary's and 3/4 of Ruth's. The sum of their ages is 46 years. How old is each? ...
A: Anonymous. I am sorry for the delay. Once Sarah's age is determined, the fractions must be ...
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| Percentage problem | 2/10/2006 |
Q: What is $2000.00 minus 35%? God Bless you for your help. Mary Moretz
A: Mary. There are two ways to answer your question. I'm not sure which way you're speaking of. As ...
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| Fractions | 2/10/2006 |
Q: I want to thank you for the reply and answer. Why is the "...with no remainder?" used in question? ...
A: Anonymous. It simply means that it divides evenly into 49 3/4 9 times. There is no remainder. That ...
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| simplifying equations | 2/7/2006 |
Q: 6(c +4) = 4c - 18 Could you give a line by line description as to figuring out this problem? ps. I ...
A: D. 6(c + 4) = 4c - 18 (write down the problem). 6c + 24 = 4c - 18 (distribute the 6 through the ...
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| fractions | 1/31/2006 |
Q: subtracting fractions with different denominators such as 4/5 -2/10
A: Abbie. Answering this question requires that you find the least common denominator for the two ...
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| what is 137 percent of 151? | 1/26/2006 |
Q: what is 137 percent of 151?
A: Jenglish. To solve this problem, you must first convert 137 percent to a decimal. To convert a ...
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| Algebra | 1/21/2006 |
Q: write an equation of te line that is paraellel to the given line and passes through the given point. ...
A: Shandric. In the given line, the slope is 2 (y = mx + b, where m is the slope). Since the slope in ...
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| Fractions & Solution For Question | 1/19/2006 |
Q: Here is mySarah's age is 2/3 of Mary's and 3/4 of Ruth's. The sum of their ages is 46 years. How old ...
A: Anonymous. I am sorry, but I am unsure how to solve the problem. Mary is 18, Sarah is 12, and Ruth ...
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| Sand Playgound | 1/17/2006 |
Q: I'd like to know how many tons of sand I need to fill a playground with the followings dimensions: ...
A: Sebastien. You need to find the volume of the playground. Volume of a rectangle: length x width x ...
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| dimensional analysis | 1/16/2006 |
Q: I totally agree! express each as miles per hour 1 mil in 3.79 min
A: Rachelle. 1 mile in 3.79 minutes converted into miles per hour requires that we set up a ratio. 1 ...
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| surds? | 1/13/2006 |
Q: how do you work out surd questions like the following? 1) /10 x /18= /= square root sign 2) /12 x ...
A: Mick. I am sorry for taking so long to respond. 1. SRT 10 x SRT 18 To answer this problem, ...
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| Math | 1/11/2006 |
Q: Im not quite sure on how to figure out mean, median, mode, and range. I was wondering if you could ...
A: Brooke. Mean, median, mode and range apply to a list of numbers. The mean is simply asking for the ...
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| math for 6th grader | 1/10/2006 |
Q: John, Can you show us the easiest way to find the area and volume of a rectangular prism. Also the ...
A: Lisa. Volume of rectangular prism: Length x width x height. Surface area of rectangular prism: 2ab ...
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| math 6th grade | 1/8/2006 |
Q: John, What is an easy way to explain to my son how to find the circumference of a circle, ...
A: Lisa. Finding the circumference and area of a circle only depends on memorizing two equations. ...
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| algebra 1 | 1/7/2006 |
Q: I do not get word problems...the hard ones...and go ahead and take the opportunity to talk about ...
A: Santana. I don't mind helping you with word problems, but it would be much easier if you gave me an ...
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| 6th grade math | 1/7/2006 |
Q: Praise the Lord! We are also saved and filled with the holy sprit of our Lord and Savior Jesus ...
A: Lisa. I am very pleased that you have eternal life. I would be happy to try and help your son with ...
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| substitution | 1/4/2006 |
Q: -3x+y=-3 5x-2y=10 i need help in substitution please help
A: Addy. To solve this problem, you need to first solve for either 'x' or 'y' in one of the equations. ...
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| algebra | 1/2/2006 |
Q: 1. Write the solution set to the inequality using interval notation. x>1andx<=6 2. Solve the ...
A: Randy. 1. x>1 and x<=6 x>1 in interval notation is (1, +infinity). You use parentheses for greater ...
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| Puzzling Question | 12/29/2005 |
Q: Here is myWhat number is that 1/7 of which exceeds 1/8 of it by 112? The answer is 6,272. I do not ...
A: Anonymous. Make the number you are solving for = x. The problem says 'What number is that 1/7 of ...
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| graphing equations | 12/29/2005 |
Q: How do you draw graphs? ex)2y=x+3 y=1/2x+2 y=2x-1 How do you find the y-intercept and the ...
A: Michelle. Assuming you know what the graph itself looks like, drawing a graph requires only that ...
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| help! how do you predict the population of bacteria?!?! | 12/9/2005 |
Q: predict the population of bacteria for each situation and the time period: 125 bacteria double ...
A: Jenelle. To be honest, I am unsure what the equation is for such a problem. However, if you use ...
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| equations | 12/6/2005 |
Q: I am a firm beliver of Jesus Chrust and i am glad you are trying to help other people with Him and ...
A: Hannah. Step one is to find the slope of the given line. There is no calculation work necessary. ...
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| rational expressions | 12/6/2005 |
Q: Given that you have a right triangle, how is the square-root used to find hypotenuse of the ...
A: Jason. The hypotenuse of a right triangle is found using the equation SQRT (a^2 + b^2) = c, where a ...
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| math | 11/22/2005 |
Q: how do i do circles like the radius and things like that
A: Sara. The diameter of the circle is the straight-line length through the center of the circle. ...
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| Alegebra | 11/19/2005 |
Q: I have this question that I think I got correct and the book says a different answer so I need help ...
A: Jenn. The book is correct. x = -7. 3 + x = -12 + 8 (write down the problem). 3 + x = -4 (combine ...
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| How do I find vaules of Z | 11/14/2005 |
Q: -7/z+1 = -6 - 2/z-2 I get the answer of (3z-4) and (2z-1) Is this correct
A: Sue. I am unsure where you got your answers from. I came up with an answer of z = -22. -7/z+1 = -6 ...
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| Rates | 11/13/2005 |
Q: I don't understand how 16/3 = 5 hours and 20 mins A car travel on the freway at an average speed of ...
A: Johnnie. When you divide 288 by 54, you come up with 5.3333 (repeating), or 5 1/3 hours (5 hours, ...
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| math | 11/8/2005 |
Q: how do you multiply fractions by whole numbers?
A: Ronald. Whole numbers can be easily converted to fractions. For example, 5 can be written as 5/1. ...
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| percents | 11/8/2005 |
Q: Trying to help son with his homework...I'm at a loss. 1. You have 600 cards printed. You give ...
A: Wendy. 1. Percentage is 'out of 100.' To solve this problem, you need to first subtract 280 from ...
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| circle | 11/5/2005 |
Q: i need to know were on acircle i find,radio,peri,circu?
A: Nelson. I'm sorry for the delay in responding. The radius of a circle is determined by dividing ...
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| prealgebra | 11/2/2005 |
Q: I am learning pre algebra and am confused with a new problem I ran across tonight. could you help? ...
A: Alexander. Yes. To begin with, divide both sides by 1/2 (this eliminates the 1/2 from the left side ...
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| Solving equations with the vairable on each side | 11/2/2005 |
Q: 2(7+3t)=-t
A: Priti. 2(7+3t)=-t To start with, divide both sides by 2 (eliminating it on the left side of the ...
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| Question | 10/31/2005 |
Q: i was wondering if you could help me in the right direction with this question x ^2.5 = 15121.07 ...
A: Karl. x^2.5 = 15121.07. x is found using roots. Specifically, the 2.5 root of 15121.07. 1/2.5 ...
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| Factoring in Algebra | 10/30/2005 |
Q: I don't understand how to factor a complex trinomial.
A: Joy. Here is one example of a trinomial: x^2-3x +2. To begin with, write two sets of parentheses: ...
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| 4/15 & 1/4 | 10/28/2005 |
Q: I want to thank you for the reply. I do have another question related to fractions. Why does a ...
A: Anonymous. This is just the way early mathematicians set it up. The numerator was the number that ...
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| I need to know how to solve... | 10/23/2005 |
Q: I need to know how to solve x/3=x+4/6..can you show me how to do this?
A: Anonymous. 1. x/3 = x + 4/6 Step 1: Write out the problem. 2. x/3 = x + 2/3 Step 2: Simplify ...
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| Area of octagon | 10/23/2005 |
Q: I need to know how to find the area of an octagon. It is a regular octagon and each side is 23 cm. ...
A: Jen. There is no simple equation to solve for the area of an octagon. To do this, you need to ...
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| MATH | 10/21/2005 |
Q: I CANT FIGURE OUT THIS PROBLEM. 5-3(2N-3)=44
A: Taylor. 1. 5-3(2N-3)= 44. 2. 2(2N-3)=44. 3. (2N-3) = 22. 4. 2N = 25. 5. N = 12.5. Step 1: ...
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| Weighted Averages | 10/20/2005 |
Q: To determine the average for 5 and 2, the following calculation is used: (5 + 2 = 7)/2 = 3.5. If I ...
A: Anonymous. Your logic is flawed. You stated: "If I want the average for 5 and 2 to equal 4..." ...
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| basic math | 10/15/2005 |
Q: I was reading a question in the newspaper and their answer does'nt seem to jive with the answer that ...
A: Bob. I am curious as to how you arrived at your answer. The answer I came up with is -1.876. In ...
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| Mean, Median, Mode | 10/13/2005 |
Q: I want to thank you for the reply. I have another example that I want you to explain as you have in ...
A: Anonymous. Since your example speaks of only one month (September), I assume the individual numbers ...
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| Equations | 10/11/2005 |
Q: What is the answer for this equation: y/3 * 6 = 4y/8 * 4? If y/3, 6, 4y/8, and 4 are multiplied by ...
A: Anonymous. y/3 x 6 = 4y/8 x 4. 6y/3 = 16y/8. 2y = 2y. y = everything; undefined. You are ...
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| Algebra help | 10/10/2005 |
Q: how do you simplify (47a^2bc^5)/(3ab^3c^2)^2 assuming that the denominator is not equal to zero. And ...
A: Danita. (47a^2bc^5)/(3ab^3c^2)^2 Step one is to evaluate the second parentheses. Everything in the ...
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| Mean, Median, Mode | 10/7/2005 |
Q: Why is it useful to know the mean, median, and mode for a list of numbers? I thank you for your ...
A: Anonymous. It's useful if the numbers are part of a set that has significance. To put it another ...
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| math | 10/5/2005 |
Q: im stuck with this one problem. how do i add in fraction form this problem.6dimes+3 quarters.thank ...
A: Victoria. One dime is 1/10 of a dollar, so six dimes is 6/10 of a dollar. Three quarters is 3/4 of ...
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| factoring algebra | 10/5/2005 |
Q: 15x-10xy
A: Nbbn. If you take a '5x' out, you are left with 5x(3-2y). To figure this out, take out whatever is ...
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| Algebra | 10/4/2005 |
Q: My son and I cannot solve this please help! -5k-19=5-13k
A: Daniel. The first step in problems like these is to get the variable on one side. The variable in ...
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| basic math apply in real | 10/3/2005 |
Q: could you help me to solve this problem? Draw a Venn diagram of the following advertising exposure ...
A: Sam. Venn diagrams are basically overlapping circles that are used to show the results of a ...
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| Fractions & Units | 10/1/2005 |
Q: I want to thank you for the reply. Is this same situation also true with fractions having ...
A: Anonymous. 2x/3x is not the same as 2/3x. If we substitute 2 for x, we will find that 2x/3x equals ...
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| Algebra-Powers and roots | 9/30/2005 |
Q: I cant seem to figure out a right answer for this _expression.Please help!Thank You! the fifth root ...
A: Vanessa. Roots and powers are the exact opposite. A power is the same as an exponent: you multiply ...
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| metrics and decimals | 9/29/2005 |
Q: How do you convert (is there a formula) 233.56 mm to kilometers? Then how do you convert kms to ...
A: Esther. There is no formula, per se. You just have to know that there are 1,000,000 millimeters in ...
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| Algebra | 9/27/2005 |
Q: 5y-3a+4x-5a Answer - Hello, Yolanda. There is no answer for this 'problem.' Since there is no ...
A: Yolanda. -5y-3a+4a-5a simplifies to -5y-4a (the a's combine together), but again, there is no ...
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| what are natural logs and... | 9/26/2005 |
Q: what are natural logs and how do i do them
A: Angee. Logarithms can be pretty tricky. The thing to remember is that a logarithm is just another ...
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| Algebra | 9/26/2005 |
Q: I can't figure out how to solve theGiven f(x)=-2/5x +3 evaluate each expression. a. f(-5) b. f (0) ...
A: Stacy. The problem tells you what f(x) is equal to. Then it substitutes the (x) with different ...
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| Percentages From Whole Numbers | 9/23/2005 |
Q: I want to thank you for the reply. It was indeed helpful. However, I have a follow-up question. Can ...
A: Anonymous. 10/6 equals 1.66666 (repeating), which is the same as writing 1 2/3. 1 2/3 as a ...
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| Percentages From Whole Numbers | 9/23/2005 |
Q: Can you think of an example or situation that would require converting a whole number into a ...
A: Anonymous. All whole numbers can be rewritten as a fraction (6 = 6/1, for example). Therefore, ...
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| Multiplying Fractions | 9/22/2005 |
Q: I want to thank you for the reply. Your replies are helpful. It is possible to express (1/3)/100 ...
A: Anonymous. 1/300 is not equal in value to 1/3%. 1/3% is equal to 1/.03, or 33.33333 (repeating). ...
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| algebra | 9/21/2005 |
Q: -6v-3>-33
A: Ana. In problems with a variable, the first step is to get the variable by itself on one side of ...
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| How do i do this problem | 9/21/2005 |
Q: How do you do, 3.5+10m=7.32. Cause i really need help
A: Nez. Step one in problems such as this is to get the variable by itself. Since 'm' is the variable, ...
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| Exploring algebra; what's the rule? | 9/18/2005 |
Q: I can not figure this out at all to help my 5th grade daughter, no book they just send this home and ...
A: Pam. It appears that the problem is focusing on 3:1 ratios. For example, the first set of numbers ...
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| fractions | 9/15/2005 |
Q: 32 and 2/ eights times 24 and 3/4
A: Dan. 32 2/8 x 24 3/4. The first step you can do is reduce 2/8 into 1/4. You don't have to, but it ...
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| sum | 9/14/2005 |
Q: the sum of 1/6, 2/3, and 1/4 is? Please if you could take me step by step to figure out the answer. ...
A: Maria. The sum of the fractions is 13/12. The first step is to find a least common denominator for ...
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| about fractions | 9/12/2005 |
Q: please tell me how to submet the fractions
A: Sameera. I believe you are asking about 'subtracting.' To subtract fractions, you must first ...
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| Factoring Polynomials with special forms | 8/26/2005 |
Q: Hope this is your area,because it is for sure not mine! Factor the perfect square trinomial ...
A: Jennifer. I checked this one on quickmath.com. The answer is 1/9 (36t^2+13). Step 1 is to combine ...
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| Racial exponents and radicals | 8/26/2005 |
Q: (1/32) 2/5 power Don't see how the answer is 1/4?
A: Cheryl. (1/32)^2/5 can be rewritten as (fifth root)(1/32)^2. First solve for the fifth root of ...
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| evaluate the expression | 8/22/2005 |
Q: evaluate the following expressions when a=2,b=3,c=-1,and d=-4. 1/3bsquare-1/4dsquare and ...
A: Karen. Step one is to write the original expression out. ^ is the sign I use for square root. 1. ...
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| Problem | 8/19/2005 |
Q: How can I execute this problem: An instrument store gives a 10% discount to all students off the ...
A: Amanda. X = original price x - .1x = original 10% discount (.15 x (x-.1x)) = 15% of the original ...
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| Least Common Denominators | 8/13/2005 |
Q: I want to thank you for your reply and answer. Is the least common denominator also known as the ...
A: Anonymous. It can be. But there are also times when you can have a least common multiple without a ...
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| Algebra | 8/10/2005 |
Q: I have problems like this one ... I don't know how to go about solving it .. 5 squared + 6x3+2 ...
A: Chad. (5^2 + 6x3 + 2^2) / (sqrt)16 This is the question I believe you are asking. The first ...
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| simplifying sqrt | 8/4/2005 |
Q: Simplify: 6- sqrt 5/4+ sqrt 5 THe / means that the first half of the problem is completely over the ...
A: Carla. I believe the answer is 29/11. To start, you need to get rid of the radical in the ...
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| Solve For ? | 8/4/2005 |
Q: How can the following calculation be solved? 5/5 X ? = 45 + 2/5 X ? ? = 75 I thank you for your ...
A: Anonymous. 5/5x = 45 + 2/5x You are solving for x. 5/5x is the same as 1x, or plain x. ...
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| compound return | 8/4/2005 |
Q: I want to calculate the compound annualized return for an investment, but all I have to work with is ...
A: Pete. I know of no calculation which can 'predict' an annualized return for an investment. ...
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| Cost of 1 yd. of material | 8/2/2005 |
Q: I've been stuck on this math problem all night :-( "Mr. Woo purchased 2 and 2/3 yds. of material ...
A: Heather. You know how much 2 2/3 yards of material cost. To figure out the cost of 1 yard, you need ...
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| Rational expressions | 8/1/2005 |
Q: I need help with the steps in adding rational expressions with unlike denominators. The problem is ...
A: Jessica. To start, you need common denominators for both fractions. On the right side, you have ...
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| Algebra | 7/22/2005 |
Q: Need help in solving this equation-trying to help my brother but it's just been too long for me! W= ...
A: Lea. This is how I would do the problem: A/BY - 12W = C/Y (2Y times 6W/Y = 12W.) A/BY = C/Y + ...
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| Teaching multiplication and division | 7/13/2005 |
Q: My son is 10 Years old and is now in 6th grade. He is doing well adding and substracting but I want ...
A: Hector. Remember that multiplication is basically mental addition (5 x 3 is the same as 5 + 5 + 5). ...
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| what percent of a peck is... | 7/7/2005 |
Q: what percent of a peck is a quart?
A: Heather. I am sorry for the lateness of my response. 1 U.S. peck is equivalent to 9.3091775 liquid ...
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| how to read a tape measure | 7/4/2005 |
Q: Could you explain to me how to read a tape measure. What those little lines read? Thanks
A: Janice. Let's start with the line just right of the 5 (the 5 inch mark). Every four marks ...
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| math | 6/29/2005 |
Q: 5y=2y-42-3y
A: Deshayla. I am sorry for taking so long to respond. To begin with, you must get the variable (y) ...
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| trignometric function | 6/21/2005 |
Q: sir, i am basicaly a mathamatical student.from my first time i was in confussion in the real ...
A: Throjen. I am sorry for taking so long to respond. The real meaning of sine and cosine is like you ...
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| simplify | 6/18/2005 |
Q: Simplify:4(2x-4)+(-3x+1)
A: Anna. You need to first distribute the 4 through the first figure, doing so by multiplying. ...
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| Rational Expressions | 6/15/2005 |
Q: John, sorry for the confusion. I wasn't able to copy equation editor to make the equation more ...
A: Ellen. I believe I understand what you are trying to ask. You are asking what (2x^2 - x - 3 / ...
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| algebra | 6/15/2005 |
Q: im stuck on algebre ive never been okay at it but i have a few questions for solving the following ...
A: Dan. In the top problem, you are asked to multiply the two figures. To do this, you need to employ ...
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| MENTAL MATH | 6/7/2005 |
Q: HAVE SEEN DEMOS ON T.V. OF KIDS LEARNING TO DO MANY-DIGIT MULTIPLICATIONS, FOR EXAMPLE, IN THEIR ...
A: JIMI. Personally, I know of no place where such a technique is taught. I have my own methods which ...
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| Algebra | 6/7/2005 |
Q: ------------------------- Followup To can you please show me an actual example. Question - Can you ...
A: Tonya. A relation can simply be a set of two points for graphing. For example, (2,5) and (2,-1) is ...
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| Algebra | 6/5/2005 |
Q: Can you explain to me so I can help my son to understand the vertical line test problem in algebra. ...
A: Tonya. The vertical line test is a simple procedure used in graphing to determine if a relation is ...
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| algebra | 6/1/2005 |
Q: i am a year 9 high school student who at the moment is learning algebra.i just cant understand it.
A: Ethan. Algebra in its simplest form is solving for an unknown variable. For example, 5 + T = 17. ...
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| systems of equations | 5/29/2005 |
Q: solve by graphing x+2y=6 2x-3y=26
A: Cynthia. To solve this problem, you first solve algebraically for 'y.' x + 2y = 6 2y = 6 - x y = ...
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| arithmetic | 5/26/2005 |
Q: what is 17+13n
A: Kortney. 17 + 13n is a math addition problem. Unfortunately, because of the unknown variable, it is ...
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| Algebra question | 5/10/2005 |
Q: Ok I have recently started school again and math isnt my forte...so could you help me with this one ...
A: Jeremy. Step 1: Get all of the variables on one side. I will subtract 4x from both sides. 3x/2 - 1 ...
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| Word Problem w/rate | 5/9/2005 |
Q: The rate for your heart to pump your blood throughout your body is 2 gallons per minute: a.) ...
A: Babe. To answer these questions you need to set up ratios (equivalent fractions). a) 2G/min = 1/2G ...
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| Independent Study | 5/7/2005 |
Q: I am just writing to find out if this website is for real, I am doing an independent study for a ...
A: Ty. This website is for real. I cannot speak for anyone else, but I usually try to respond within ...
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| HELP | 5/6/2005 |
Q: im in 6th grade math adn im doing perimeter and area. I had trakc and everyhting and i dont have ...
A: Hannah. Remember that area is equal to (length x width), and this dimension is measured in square ...
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| COMBINATIONS OF NUMBER | 5/4/2005 |
Q: I'M LOOKING TO FIGURE OUT HOW MANY AND WHAT THE COMBINATIONS ARE OF NUMBERS 0-9 IN 4 DIGIT GROUPS. ...
A: Michele. If you have ten books, for example, and you want to organize them into combinations of 4, ...
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| math | 5/3/2005 |
Q: what is the point about factorial?
A: Tyler. Factorials (in the form, x!), are used to determine the number of possible ways a set of ...
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| how do you graph the equation... | 4/29/2005 |
Q: how do you graph the equation y=x2-1
A: Jon. To graph any equation, make a table. You may use any numbers for x (or y) that you like, but ...
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| 1. what is answer of
... | 4/25/2005 |
Q: 1. what is answer of log x - log y - log z 2. if the problem is : (a+b)/( x*a+b) ...
A: Asp. log x - log y = log x/log y. Subtracting log z from (log x - log y) is the same as (log x / ...
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| algebra | 4/23/2005 |
Q: how would you solve 2+(-4)(-1(4))-2+1)
A: Ericrachel. For problems like this, you must first evaluate what is inside the parentheses. ...
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| probability | 4/22/2005 |
Q: a standard deck of playing cards has 52 cards in 4 suits: hearts, clubs, diamonds, and spades. 13 ...
A: Amy. In these probability problems, 52 will always be the number in the denominator (unless the ...
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| How to wite big amounts | 4/21/2005 |
Q: I hope you will be fine.Some time i bcome so confused in writing big amounts like crore or more.I ...
A: Zeeshan. I am unsure what language those amounts are in, but I did some research. One 'crore' is ...
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| math | 4/20/2005 |
Q: this is a long division problem 1. 62 772 2. 41 593 I must show my work
A: Cammie. I'm assuming that question 1 is supposed to read 772/62. Step 1: Divide 62 into 77 (the ...
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| Rational Numbers | 4/18/2005 |
Q: Find the number one-third of the way from 1/6 to 4/5.
A: Linnet. To solve this problem, first subtract the two numbers, then multiply by 1/3. Finally, add ...
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| Radicals | 4/13/2005 |
Q: This is a radical problem that says to rationalize each denominator using the conjugate. Please ...
A: Ashley. To rationalize the denominator, you need to eliminate all of the square roots. I will use ...
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| maths | 4/13/2005 |
Q: why is 0*infinity not zero,when we know that any number multiplied by zero is zero? Answer - Hello, ...
A: Punit. Negative infinity and positive infinity are generally thoug |
