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Basic Math/Questions Answered by Expert Lynn Houston
| Subject | Date Asked |
| algebra question | 2/1/2012 |
| Q: I have a question that I just can't get. The question is 5000 = 9000/(1 + r)^10 I can get up to the ... A: divide both sides by 9000 and reduce 5/9 = (1 + r)^10 Take the 10 root of both sides. Not sure ... | |
| Percentage Question | 1/29/2012 |
| Q: This is not a homework question; I am an adult who needs an explanation. Is it correct that 5 is ... A: Because you're starting with 2 different numbers. In one case you're dividing 4 into parts and in ... | |
| Confusing Calculation | 12/7/2011 |
| Q: How should this calculation be solved? (1/7)/ 15 X 21 = ? I get two answers. If 1/7 is divided by ... A: As you have it (1/7)/ 15 X 21, then 1/5 is the correct answer. Remember PEMDAS, which stands for ... | |
| Units X Units Calculation | 11/29/2011 |
| Q: 15 workers can finish a job in 7 days. 1 worker can do the same job in 105 days. Here's the ... A: Ok, the only reason your "reduction" works is because you've already multiplied the 1/21 and 15 and ... | |
| Units X Units Calculation | 11/28/2011 |
| Q: 15 workers can finish a job in 7 days. 1 worker can do the same job in 105 days. Here's the ... A: Not sure what you're doing with your calculations, but you can't just "reduce" (ie divide by 3), 2 ... | |
| estimate w/fractions/estimate the sum or difference | 11/19/2011 |
| Q: 3 7/15+5 6/7-1 1/8= 6 9/10-2 7/16= I tried but I am not sure of my answers...thanks ANSWER: 3 ... A: The answer depends on how you round. If you round to the whole number, then yes, the answers are ... | |
| Adding percentages | 11/6/2011 |
| Q: My question is how do you add two percentages together and if you divide the total by 200. For ... A: if percentages are giving you problems, just treat them as fractions... when you add fractions with ... | |
| Math | 11/1/2011 |
| Q: I need to know how to do variable expressions. My teacher it trying to teach me but I just don't get ... A: 9x-8x^2-12 + 7x^3 + (-3x^3-7x^2+5x-9) If this is the correct problem, then here is how you solve it. ... | |
| Math problems about Digits | 10/30/2011 |
| Q: A book has 168 pages. How many digits are used to print the page numbers of the book? Please help! ... A: 9 pages have 1 digit (1-9) 90 pages have 2 digits (10-99) 69 pages have 3 digits (100-168) so the ... | |
| dimensional Analysis | 9/16/2011 |
| Q: "1.The reccommended dosage of Benadryl is 1.25 mg of Benadryl for every 2kg of body weight. How much ... A: First you need to convert the dosage to lbs or the child's weight to kgs and lenght to miles or ... | |
| hellpp!!!!! | 7/20/2011 |
| Q: how can i factor mr + ns - nr - ms A: yes, swap the ns and -nr so you have mr - nr + ns -ms, then factor out the r and s. r(m-n) + ... | |
| Math | 7/1/2011 |
| Q: 1. "X is at most 3" can be represented by x ≤ 3. Is this true or false? 2. The sum of a ... A: 1. "X is at most 3" can be represented by x ≤ 3. true 2. The sum of a number and -4 is ... | |
| Rounding Up | 6/24/2011 |
| Q: When rounding to two Decimal Places would the number 0.6549 become 0.65 or 0.66 due to the nine ... A: if you're rounding to 2 digits, you only look at the 3rd digit. You only look to the next digit, so ... | |
| algebra | 6/4/2011 |
| Q: How to you solve 5/7-5/51 simplifying if possible. I need a break down of this problem. thank you. A: You start by finding a common denominator (a number that is divisible by both 7 and 51). Sometimes, ... | |
| volume of solids | 5/29/2011 |
| Q: find the volume of a cone that is 18in. high and has a 6in. radius A: for a cone with height h and base radius r, the volume, V of the cone will be: v= ... | |
| Help with maths! | 5/1/2011 |
| Q: 6 + 2x = x - 6 please please could you help me :) thankyou Georgia :) A: The secret to solving these is to "undo" everything that has been done to x. Multiplication ... | |
| MATHS | 4/6/2011 |
| Q: The average of 5 consecutive odd numbers V,W,X,Y and Z is 41.What is the product of V and Z? A: Just looking at the problem, if the average is 41 and there are 5 consecutive odd numbers, the ... | |
| Math Set theory | 2/7/2011 |
| Q: 2. Set X = {5, 7, 11, 16, 21, 702}, Set Y = {2, 5, 8, 11, 19, 702} a. What is the union of Sets X ... A: 2. Set X = {5, 7, 11, 16, 21, 702}, Set Y = {2, 5, 8, 11, 19, 702} a. What is the union of Sets X ... | |
| basic math | 1/31/2011 |
| Q: jake spent 3/5 of his allowance on snacks, 1/4 of the remainder on stickers and saved the rest which ... A: let x = Jake's allowance 3/5x = snacks 1/4x = stickers 3/5x + 1/4x + 12 = x 12/20x + 5/20x + 12 = ... | |
| advance algebra | 1/19/2011 |
| Q: Jim can fill a pool carrying buckets of water in 30 minutes. Sue can do the same job in 45 minutes. ... A: Jim completes 1/30 of the job per minute Sue completes 1/45 of the job per minute Tony does 1/90 ... | |
| evaluating a math problem | 1/12/2011 |
| Q: i'm trying to figure out what it means when you have a problem inside quotation marks but no sign in ... A: it implies multiplication. So, first, you would do the "addition" (actually subtraction) in the ... | |
| basic math | 12/28/2010 |
| Q: after calculating the population density of South Carolina what's. How can u express my answer in ... A: There is either something extra or something missing in your question, but it sounds like you have ... | |
| Rounding prices | 12/28/2010 |
| Q: Im having a bit of trouble in rounding prices but I'm willing to get better understanding on how to ... A: Simple rule of thumb is if it's greater than 1/2 of what you're rounding to, round up, less than ... | |
| maths | 12/18/2010 |
| Q: a pole is of height 30 feet. a man climbs up the pole at the rate of 3 feet per minute and slip down ... A: So basically, he's climbing 2 feet every 2 minutes (or a foot a minute). Therefore, at the end of 2 ... | |
| Algebra | 12/8/2010 |
| Q: The perimeter of a rectangle is 40. The width is half the length + 2. What is the length and the ... A: perimeter = 2L + 2W and we know that the width is 1/2 the length + 2, so w = 1/2L + 2. Fill in the ... | |
| prime factorization | 12/1/2010 |
| Q: what is the prime factorization of 490 in "tree form". I am clueless. A: Let's see if I can explain this without being able to draw a picture. What you're going to do is ... | |
| math perpendicular line equations | 11/30/2010 |
| Q: Find an equation for a line that is perpendicualr to 2x-3y+6=0 and has the same x intercept as ... A: Start by putting the first eq into the slope intercept form y = 2/3x + 2 Perpendicular lines ... | |
| mental arithmetic equation | 11/22/2010 |
| Q: I have a friend who did an equation 0.25 x 12.8 and got 32 as the product. so i am trying to explain ... A: Ok, I can think of two things you might try. One is logic. .25 = 1/4, so by multiplying something ... | |
| describe a situation ....ROUNDING Up DOWN? | 11/22/2010 |
| Q: Describe a situation in which it would make more sense to round up the number 7.122 to 8 or even ... A: The only reason I can think of to round up (in retail) is to make sure you have enough money if ... | |
| Extra Credit Problem | 11/20/2010 |
| Q: I need an answer to this problem: What is the digit in the tens place of this sum? ... A: 6 7,777,777,777,777,777 777,777,777,777,777 77,777,777,777,777 7,777,777,777,777 ... | |
| Algebra one step-by-step | 11/9/2010 |
| Q: Write an equation of the line that passes through the given point and is parallel to the given ... A: First thing you need to do is put the equation into the slope intercept form, that is y = mx + b, ... | |
| beginning Algebra part 2 | 10/27/2010 |
| Q: I have a couple questions on this math. I am not understanding it and the teacher really doesn't ... A: The "secret" to solving these are to isolate the variable you're solving for by "undoing" everything ... | |
| HELP ASAP PLEASE | 10/27/2010 |
| Q: The personnel manager for a large computer company is planning to promote one of two outside ... A: Not sure if this is a business question or a math question, but if you have the # of call vs the # ... | |
| i need help on math equation | 10/27/2010 |
| Q: the question is give the slope and a point on the line whose equation is y-5=3/4(x+8) can you help? A: the slope intercept form of an equation is y = mx + b where m is the slope and b is the y ... | |
| math help | 10/25/2010 |
| Q: If a figure is a rectangle, is it also a square? If a figure is a square, is it also a rectangle? ... A: no, yes and yes Look at the definitions of square, rectangle and isosceles triangle square: a ... | |
| value of x | 10/17/2010 |
| Q: If x to second power + x= 6, what is the value of x? Can you write it out very clearly..so I ... A: I just used the process of elimination. If the total can only = 6, then a number squared has to be ... | |
| math | 10/14/2010 |
| Q: Belts cost $160 per carton and shoes cost 465 per carton. If an order comes in for a total of 88 ... A: Let b = # of cartons of belts and s = # of cartons of shoes 160b + 465s = 19265(?)guessing based on ... | |
| Fractions | 10/12/2010 |
| Q: How do I find the least numerator of 4/9 and 8/15? A: I think maybe what you're asking for is how to find the lowest common denominator (the bottom ... | |
| algebra | 10/7/2010 |
| Q: What is the hypotenuse and how do you solve for it. A: The hypotenuse is the side of a right triangle opposite the right angle or the longest side of a ... | |
| need help solving | 10/5/2010 |
| Q: You need to choose between two telephone plans for local calls. Plan A charges $25 per month for ... A: let x = number of local calls per month, so Plan A = 25 and Plan B 13 + .06x. You want to know ... | |
| Subtracting Mixed Numbers | 10/4/2010 |
| Q: 3 5/8-5/6. I found the comon denomiator as 24 but when I worked it out by subtracting the ... A: You can do it one of two ways, convert the mixed fraction to a fraction, find common denomitor and ... | |
| measurement | 10/3/2010 |
| Q: Sam has a wall that needs painting. The wall is a rectangle 12 feet, 4 inches by 7 feet, 8 inches. ... A: Convert the measurements to feet and then multiply. 4" = 4/12 = 1/3 = .333 8" = 8/12 = 2/3 = .666 ... | |
| algebra help | 10/1/2010 |
| Q: I am in 7th grade and 12 years old. I have a problem with thissolve for x: (x-3)/y=x. This is how ... A: You're on the right track. To solve for x, you need to "undo" everything that has been done to x, ... | |
| Basic Math Question | 9/24/2010 |
| Q: You are working on a home improvement project in which you are installing new, energy-efficient ... A: Well, there isn't really enough information here to give an answer, but here are two things to ... | |
| Help Urgent By tommorow | 9/21/2010 |
| Q: How do you multiply a whole and a decimal A: The same as if there was no decimal. The only thing you have to do differently, is count where the ... | |
| Math | 9/20/2010 |
| Q: I will just copy the question from the book. Sabrina folded an 8 1/2 by 11 inch piece of paper in ... A: Do you have a piece of paper from your printer (or a piece of notebook paper) and a ruler? The ... | |
| Math | 9/16/2010 |
| Q: Find the equation of the line through (20,-5) which is perpendicular to 2x+5y=8. so far i had this ... A: Ok, I think you're headed in the wrong direction... the slope is correct for the new line (m=5/2) ... | |
| chemistry | 9/7/2010 |
| Q: A perfect cube of aluminum was found to weigh 20.00g. The density of aluminum is 2.70 g/ml. What are ... A: Formulas you'll need D = M/V and volume of a cube = a^3 (where a = length of any side) d = ... | |
| Positive and negative numbers | 9/7/2010 |
| Q: What is the sign of a negative number raised to an odd power? Why? Thanks!! A: It's going to be negative. The easiest way to see this is to just pick a number and cube it. Start ... | |
| Division & Mixed Numbers | 8/7/2010 |
| Q: How would you solve for the following? Divide $1.00 by $0.33 1/3. I need to see your calculation ... A: you want 1.00/.33. It's kind of hard to show long division here since it's hard to make the ... | |
| math | 7/28/2010 |
| Q: 8 = | 5 y + 2 | 1 - 0.5 p | ≤ 2 2 t - 3 | + 2 = 5 | 3 k - 2 | < 4 this is some ... A: Here's a website that explains absolute values better than I could, but basically, you value between ... | |
| Math | 7/22/2010 |
| Q: A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 ... A: Let x = miles driven in a day 50 + .2x < 20 + .5x subtract 20 from both sides 30 + .2x < .5x ... | |
| algebra 2 | 7/21/2010 |
| Q: 1. Solve the system: x + y = 4 (y + 2) x - y = 2 (y + 4) a. Infinite ... A: 1. Solve the system: x + y = 4 (y + 2) x - y = 2 (y + 4) a. Infinite ... | |
| algebra | 7/19/2010 |
| Q: determine the equation of the line that is perpendicular to 5x-2y=10 and which passes through the ... A: start with the slope intercept form y = mx + b and put the equation given into that form. 5x-2y=10 ... | |
| algebra 2 math help! please | 7/18/2010 |
| Q: 1.Solve the system of functions. 3x-y=4 x+2y= -8 A.(0,4) C.(0,2) B.(1,-4) D.(0,-4) 2.Solve ... A: 1.Solve the system of functions. 3x-y=4 x+2y= -8 D.(0,-4) 2.Solve the system of equations: ... | |
| algebra 2 | 7/16/2010 |
| Q: 1. The domain of x is {-1, 0, 2}. Solve the equation: -2x + y = -3 A.(-1,1); (1.5,0); ... A: 1. The domain of x is {-1, 0, 2}. Solve the equation: -2x + y = -3 B.(-1,-5); (0,-3); (2,1) ... | |
| math | 7/6/2010 |
| Q: 1. The cost of an adult ticket to a football game is $1.75. The cost of a student ticket is $1.25. ... A: 1. The cost of an adult ticket to a football game is $1.75. The cost of a student ticket is $1.25. ... | |
| how many will i need? | 7/3/2010 |
| Q: First let me say, thank you for devoting your time and efforts to this wonderful website. Now, I am ... A: Since this is an real life project and not a homework assignment, I'm assuming you just need the ... | |
| Math | 6/29/2010 |
| Q: Daniel Read 80 pages of a western novel in 120 minutes. The novel has an average of 250 words per ... A: a. About how many total words does the 80 pages contain? A: 80 x 250 B. What is Daniel's reading ... | |
| Math - Why do you flip the fraction when dividing?? | 6/28/2010 |
| Q: I've searched everywhere but everything just says You flip the fraction round and i understand how ... A: Here is an excellent explanation of why u "flip the fraction" ... | |
| math | 6/28/2010 |
| Q: A father said to his son, "I was as old as you are at the present at the time of your birth". If the ... A: It's easy enough to look at this logically and say the father was 19 when the kid was born, the kid ... | |
| Algebra | 6/27/2010 |
| Q: Show me how to solve this linear equation 3(x-2)+7=2(x+5)can u show me step by step how it is done ... A: Assuming you mean, solve for x, then here is how. 3(x-2)+7=2(x+5) do the multiplication 3x - 6 + 7 ... | |
| Math | 6/21/2010 |
| Q: I need 2 examples of universal sets. I am not sure what to use. Could you give me 2 examples? Thank ... A: A universal set can be anything as long as it includes the element you're looking for. If u have a ... | |
| algebra | 6/18/2010 |
| Q: I have 2questions. 75/1.5=35/X 15/500X=6 A: Assuming you want to solve for x... 75/1.5=35/X multiply both sides by 1.5x ... | |
| how do i solve this square root problem | 6/11/2010 |
| Q: 6+sqrt(2x+12)=x A: 6+sqrt(2x+12)=x sqrt(2x+12)=x-6 square both sides 2x + 12 = x^2 -12x + 36 combine like terms x^2 - ... | |
| 3rd grade fractions | 6/7/2010 |
| Q: Math is not my best subject and am having trouble understanding my daughter's math problem. I will ... A: I'm not sure if the drawing came out accurately, but I'll explain how to do it so if it's not ... | |
| Algebra | 5/25/2010 |
| Q: 25. During the first 20 miles of a 50 mile bicycle race, Roger's average speed was 16 mi/h. What ... A: 25. During the first 20 miles of a 50 mile bicycle race, Roger's average speed was 16 mi/h. What ... | |
| geometry | 5/19/2010 |
| Q: if a cone has a circumference of 20 and a slant height of 5, how do i find the lateral surface ... A: You need to use a couple different formulas. The eq for lateral surface area of a cone is sa = pi ... | |
| Math | 5/13/2010 |
| Q: A car travels with uniform speed. If it would have faster 10 km/h, It would reach destination 2 ... A: rate = r kph ; time = h hours ; distance = rh miles --------------------- Slower speed DATA: rate = ... | |
| How to graph intercets | 5/13/2010 |
| Q: So my teacher said to find the y- intercept you had to use x=0 and to find the x-intercept you had ... A: whatever equation you have, you fill in 0 for x to find the y intercept and then fill in 0 for y to ... | |
| Probability | 5/12/2010 |
| Q: Have 2 blue blocks in bag. how many red blocks need to be added to bag to get a red block 2/3of the ... A: 4 red blocks will give you a 4/6 (or 2/3) shot of getting a red block. The way I figured that is: r ... | |
| About MDAS | 5/7/2010 |
| Q: #1. 1+5*7-4+9/3-(6+7-8)*3 #2. 5-13-8/2-61+5 thank you A: Ok, so if you don't already know, MDAS is the order of operations. Multiplication, Division, ... | |
| math | 5/5/2010 |
| Q: how do you find the value of x? A: Well, without an actual problem to the solve, the basic answer is to isolate the x on one side of ... | |
| real solutions | 4/28/2010 |
| Q: find all real solutions of the equation: x+2/x-2 = 3x/3x-6 A: x+2/x-2 = 3x/3x-6 get rid of the fractions by multiplying both sides by (x-2)(3x-6) ... | |
| simlifying radicals, exponents, negative exponents | 4/15/2010 |
| Q: I don't understand these problems, Write each of the using only positive exponents. x^2 divide y^-3, ... A: The simple rule to make an exponent positive is to move it to the other side of the line. Every ... | |
| Percentages and Discount | 4/6/2010 |
| Q: If the regular price is $65.99 and the discounted price is $56.09, how do I determine the discount ... A: If you knew what the discount was, but not the final price, how would you solve the problem? You ... | |
| Studying for ACT , Need help!! | 3/30/2010 |
| Q: I am having trouble understanding how to find the value of x in an equation. For example this ... A: you have to isolate the variable (x) by "undoing" everything that has been done to it and whatever ... | |
| math | 2/22/2010 |
| Q: 7 over 23 is the fraction. please help ezekiel find the decimal approximation to the nearest ... A: Well, obviously, 23 will not go into 7, so you have to add a decimal and add a zero. Now you have ... | |
| Rates | 2/22/2010 |
| Q: If one person can eat a pie in 6 days, he has eaten 1/6 of the pie per day (Divide pie and 6 days by ... A: TOGETHER they have eaten 1/6 of the pie in one day, so each one has only eaten 1/12 of the pie in ... | |
| ask a question | 2/17/2010 |
| Q: A MAN SOLD 10 EGGS FOR RS5 AND GAINED 20%.HOW MANY EGGS DID HE BUY FOR RS5? ANSWER: let x = the ... A: I don't have to solve it again... 400 x .32 = 128 400 x .37 = 148 A who got 32% on his test got ... | |
| ask a question | 2/16/2010 |
| Q: A MAN SOLD 10 EGGS FOR RS5 AND GAINED 20%.HOW MANY EGGS DID HE BUY FOR RS5? ANSWER: let x = the ... A: Ok, let x = total # of "marks" possible (just fyi, I have no idea what marks are) Just looking at ... | |
| ask a question | 2/15/2010 |
| Q: A MAN SOLD 10 EGGS FOR RS5 AND GAINED 20%.HOW MANY EGGS DID HE BUY FOR RS5? A: let x = the number of eggs the man bought for RS5 so 5/x is the price per egg. He sold 10 eggs for ... | |
| Perpindicular lines | 2/9/2010 |
| Q: What is the slop of the line perpendicular to the line whose equation is 5x+3y=8? Ive been working ... A: 5x+3y=8 Put into slope intercept form 3y = -5x + 8 y = -5/3x + 8/3 The slope of this line is ... | |
| Problem solving | 2/5/2010 |
| Q: If a computer teacher has 20 students, 8 of whom are women and 12 of whom are men. If her afternoon ... A: let x = women and y = men 8/12 = x/y x+y = 30 x = 30-y substitute the value of x into the first eq ... | |
| 5th grade math | 1/27/2010 |
| Q: Helping my son with homework, he forgot his math book. How would I explain to him how to find this ... A: Treat the "space" as a variable, lets say z and then "undo" everything done to z (this is assuming ... | |
| percent of change | 1/22/2010 |
| Q: Describe a situation that involves a percent of increase that is more than 100% A: In 2006, 10,345 ppl who were in car wrecks, were not wearing their seat belt. In 2009, there were ... | |
| 5 th grade math | 1/21/2010 |
| Q: please tell me how to solve this question...I am helping my daughter with her math home work..I ... A: To solve this, you have to "undo" everything that has been done to N. Start by getting rid of the ... | |
| math | 1/20/2010 |
| Q: I'm not sure you received my question when I sent it. Here I go again, I'm sorry if you already did. ... A: in 1 minute, Sandie can do 1/45 of her route and together they can do 1/18, so 1/45 + x = 1/18 x = ... | |
| value of x | 1/20/2010 |
| Q: could you possibly help me find the value of x in this equation? (x+3)÷(x+5)=(x-1)÷(x+3) A: (x+3)/(x+5)=(x-1)/(x+3) Multiply both sides of the eq by (x+5)(x+3) x+3(x+3) = (x-1)(x+5) do the ... | |
| stat | 1/18/2010 |
| Q: This isn't exactly a math problem, but I hope you can help. On baseballreference.com, the top 6 run ... A: Yes, to me it would make sense too, but that's not the way it works. It has to do, as you said, the ... | |
| lowest common multiple | 1/17/2010 |
| Q: what is thge lcm of 36,54,108 A: 36 * 3 = 108 54 * 2 = 108 108 * 1 = 108, so 108 is the lowest common multiple The way to figure ... | |
| calculating percentages | 1/12/2010 |
| Q: I had posed this question and didn't get a response. "Our store has a sale on gift certificates of ... A: Since you're using 2 sets of numbers, I'll just give you the formula and you can fill in any numbers ... | |
| Math | 1/11/2010 |
| Q: the sum of a digit of a two digit number is one fourth the number. If their difference is 3 . find ... A: x = the ones digit and y = the 10's digit So, the number = 10y + x 1/4(10y+x) = x + y x-y = 3 (or ... | |
| math | 12/19/2009 |
| Q: 1 meter = 3.28 ft 4/5 of a foot = what fraction of a meter? They have the answer as being 1/4 on ... A: 1 meter is to 3.28 ft as x is to 4/5ft 1:3.28 = x:4/5 1/3.28 = x/(4/5) 1/(82/25) = x/.8 These are ... | |
| Geometry | 12/3/2009 |
| Q: A sphere has a volume of 85.3Pi* cm cubed. What is the volume of a sphere with a radius that is 3 ... A: Use the equation for the volume of a sphere, V = 4pir^3/3, and solve for r. So, 85.3pi= 4pir^3/3. ... | |
| sir | 11/25/2009 |
| Q: Sir, Please help me to find out the percentage that if 30 is the 70% of 100 then 20 is the 70% of ... A: If I understand the question, the 100 is actually 100% of an unknown qty, so let x = the unknown ... | |
| cube | 11/20/2009 |
| Q: how to find cube root of 5000 withou calculator....that is manually A: The only way I know is with a lot of pencil work. You just whittle it down. 10^3 is 1000 so you ... | |
| algebra | 11/20/2009 |
| Q: how do I solve this question 5-1 1/2X=-9 A: Going on the assumption that the problem is accurate as I applied the parentheses 5-(1 1/2)X=-9 ... | |
| i need help! | 11/16/2009 |
| Q: i need help with writing 2 equivalent ratios for 7:4 and writing 36:45 and 22:25 in simplest form A: to write two equivalent ratios, just multiply 7 and 4 by any two numbers. 2 and 3 are easiest, so ... | |
| math | 11/12/2009 |
| Q: how much more is 2 than .2 ANSWER: 2 - .2 = 1.8 ---------- FOLLOW-UP ----------I don't think I ... A: Oh, that I understand. 2mg instead of .2mg. That's a 900% increase. As an aside, unfortunately, ... | |
| Multiplying Fractions! | 11/9/2009 |
| Q: I love math, and I sail through the questions my teacher gives me, but now I'm stuck with my enemy, ... A: No, actually, that's the good thing about multiplying fractions, you don't have to worry about ... | |
| Algebra II.....please help me its urgent!!! | 11/8/2009 |
| Q: 12. Simplify: 2a^2 = 7a+4 a. a = 0.5 or -4 b. a = -0.5 or 4 c. a = 0.5 or 4 ... A: 12. Simplify: 2a^2 = 7a+4 b. a = -0.5 or 4 13. Simplify: (n-1)^2 = 1 d. n = 0 or 2 14. ... | |
| Subitution Math Problem | 11/6/2009 |
| Q: What are the steps to this substitution y=9x-28 8x-3y=27 A: You take the value of y, which is 9x-28 and you fill that into the second equation for y. 8x - ... | |
| 5th grade Applications Problem | 11/5/2009 |
| Q: Please help me solve this multiquestion problem Table: 2003-2004 Season Player Averages ... A: PaRKER SCORED 14 PTS per game, so pts for the season would be 102 * 14 = 1428 The team scored 45 ... | |
| Elimination and Substitution | 11/5/2009 |
| Q: How to solve an equation that has 3 different variables 2a+c=-10 b-c=-15 a-2b+c=-5 A: Take the equations with only 2 variable and solve them for a and b, then fill those values into the ... | |
| help | 11/5/2009 |
| Q: if tony climbs 3 1/2 meters per minute. how many meters did he climb in 2 1/4 minutes ? the answer ... A: 3 1/2 = 3.5 (1 divided by 2 = .5) and 2 1/4 = 2.25 (1 divided by 4 = .25) so, to find out how many ... | |
| math crap | 11/4/2009 |
| Q: i dont understand my teacher goes way to fast. 2/3V=14 solve V. What do i do?!?!?!?!?!?! A: When you're solving for a variable, you have to isolate the variable and in order to do that, you ... | |
| 8th grade pre algebra multi-step equations | 10/27/2009 |
| Q: I really don't under stand multi-step equations can you help? MY problems are 1.)-15-6c+3b-6+9+2a ... A: All they want is for you to combine all like terms. That means add or subtract all a's, b's, c's, ... | |
| solveing linear equations | 10/26/2009 |
| Q: can you please show me in steps, as each time i do these, i get a different answer :-( 1. 5+ ... A: The easiest way to handle these is to start by getting rid of the fractions. To do that, multiply ... | |
| substitution and elimination | 10/24/2009 |
| Q: i really need help with substitution and elimination!!pls help me: 1) X+5Y-26=0 3X+2Y=0 ... A: SOLVE 1ST EQUATION BY ELIMINATION. 1) X+5Y-26=0 3X+2Y=0 Multiply the first eq by -3 ... | |
| solve for X & solve inequality | 10/22/2009 |
| Q: solve for X. 3+1/x+1 = 4x/x-1 solve the inequality 2x²-x>6 ANSWER: solve for X. 3+1/(x+1) = ... A: I meant, both sides of the eq, meaning, the part to the right of the = sign and the part to the ... | |
| simplify expressions | 10/22/2009 |
| Q: a) 5 + 2(x + 1) my answer 7x+7 book 7 + 2x b) 3x + 4(2x − 1) my answer 6x^2+5x-4 ... A: a) 5 + 2(x + 1) my answer 7x+7 book 7 + 2x 5 + 2x + 2 7 + 2x b) 3x + 4(2x − 1) my ... | |
| solve for X & solve inequality | 10/21/2009 |
| Q: solve for X. 3+1/x+1 = 4x/x-1 solve the inequality 2x²-x>6 A: solve for X. 3+1/(x+1) = 4x/(x-1) (multiply both sides by (x+1)(x-1) (3+1)(x-1) = 4x(x+1) Multiply ... | |
| Math Problem"chances" | 10/20/2009 |
| Q: Need help - how do we solve this problem? The names of al the white notes on a piano are written on ... A: There are 7 each of D, E, F & G for a total of 28 pieces of paper 8 each of A, B, C, for a total of ... | |
| another question | 10/19/2009 |
| Q: determine the slope intercept form of the linear equation if passes through (7,2) and is ... A: a) x=7 is a vertical line which has no slope. to be perpendicular, the line must be a horizontal ... | |
| difficult question for me | 10/19/2009 |
| Q: determine the slope intercept form of the linear equation if passes through (7,2) and is parallel to ... A: slope intercept is y = mx + b, where m = slope and b = y intercept. A) x = 7 is a vertical line ... | |
| Math grade 6 | 10/17/2009 |
| Q: We need help with equations using letters. 50 =x/ 10. We know how to do + and - but how do you do ... A: The secret to any of these is that you have to "undo" everything that is done to the variable that ... | |
| reciprocals | 10/14/2009 |
| Q: i would like to know what a reiprocal is and how it works with decimals A: A reciprocal is a number that you multiply by so that the result equals 1. The easiest way to find ... | |
| math | 10/13/2009 |
| Q: of the three numbers,second is twice the first and is also thrice the third.if the average of the ... A: the numbers are a, b and c these facts are given in the problem a+b+c/3 = 44 (a+b+c = 132) a = b/2 ... | |
| algibra | 9/30/2009 |
| Q: how do i find the radius of a sphere with the volume= 4.5pie A: Volume of a sphere =(4/3)*pi*r3 So just fill in what you know and solve for r (radius) 4.5pi = ... | |
| standard form | 9/28/2009 |
| Q: write each of the following numbers in standard form a.four hundred thirty thousand b.ninety ... A: write each of the following numbers in standard form a.four hundred thirty thousand 430,000 ... | |
| Linear Equations | 9/20/2009 |
| Q: Through (-9,7) and perpendicular to y=3/2x+6 The directions for this problem is to find the ... A: if the lines are perpendicular then the new line will have a slope that is the negative reciprocal ... | |
| Reciprocal | 9/18/2009 |
| Q: I'm not good with negatives and positives. Or fractions and stuff. So the directions say, "Find the ... A: The question is, what multiplied by -7 = 1? So, yes, "do the same thing", which I hope means, put ... | |
| college algebra | 9/16/2009 |
| Q: Roberto invested some money at 6%, and then invested $5000 mor than twice this amount at 10%. Hist ... A: x = amt invested at 6% y = amt invested at 10% .06x + .1y = 4400 or 6x + 10y = 440000 2x + 5000 = y ... | |
| algebra | 9/12/2009 |
| Q: Simplify to positive exponents only: {-11m^-2np^-3}^-2/{44mn^3p^-4}^-2 I'm so confused with this ... A: When you have a negative exponent, to make it positive you put it on the other side of the line. ... | |
| averages | 9/11/2009 |
| Q: in one season a basketball player missed 15% of her free throws. how many free throws did she make ... A: If she misses 15%, then 160(.15) = the number she misses. To get the number she makes, just ... | |
| Sum of Positive Consecutive Integers | 9/8/2009 |
| Q: I'm in seventh grade, and I'm stuck on this one question . Here it is: Find and record all of the ... A: 1+2=3 2+3=5 3+4=7 4+5=9 etc Do you see a pattern evolving? Odd numbers from 3-25 can be written as ... | |
| arithmetic | 9/6/2009 |
| Q: It has been so long since I have been out of school I forgot how to do this problem. If 48 apples ... A: Funny, I always have that same problem, so what I do, it make it really simple. What if you had two ... | |
| Percentages | 9/6/2009 |
| Q: 110 + (110 x 40%) = 110 x (140%) = 110 x 1.40 = 154 How does 110 x 40% equal 140%? A: Let me give you an example and see if it makes sense. Let's use tax and let's make it easy, so ... | |
| factoring | 9/3/2009 |
| Q: 484x^3 y^2 + 132x^2 y^3 -88x^4 y^5 How do I factor this? I attempted it, but was incorrect with ... A: You are correct, that you were incorrect ;-). You can't factor out x^4 since you don't have x^4 or ... | |
| algebra | 9/2/2009 |
| Q: Solve for t: 2t+3/t-1 - 2/t+3 = 5-6t/t^2+2t-3 I'm confused with the common denominator here A: 2t+3/t-1 - 2/t+3 = 5-6t/t^2+2t-3 start by factoring t^2+2t-3 and something should look familiar! ... | |
| algebra | 9/2/2009 |
| Q: Multiply: 2c^2-5c/2cd+d x 2cd^2+d^2/5c^2-2c^3 A: ((2c^2-5c)/(2cd+d)) x ((2cd^2+d^2)/(5c^2-2c^3)) Assuming that this is the correct problem, then... ... | |
| maths | 8/31/2009 |
| Q: what is algebra? and what is diagonal? then what is phythagoras theorem A: al·ge·bra (al′jə brə) noun 1. a mathematical system using symbols, esp. ... | |
| negative times negative | 8/21/2009 |
| Q: why is a negative times a negative a positive? thanks, Jemma A: Well, if you were asking a parent, the answer would be, "Because!". But, that's probably not what ... | |
| fractions | 8/20/2009 |
| Q: the sum of 1/6, 2/3 and 1/4 is question 2 the LCD for the fractions 1/3, 3/4, 5/32 and 8/9 is ... A: the sum of 1/6, 2/3 and 1/4 is 2/12 + 8/12 + 3/12 = 13/12 or 1 1/12 the LCD for the fractions 1/3, ... | |
| Converting between units | 8/18/2009 |
| Q: Im having great difficulty in understanding how to do conversions, for example 1120ns = ? ms and ... A: The only set rule is to divide or multiply to get from one to the other. There is no set number ... | |
| digit problem | 8/1/2009 |
| Q: A two digit number is three less than seven times the sum of its digits. If the digits are reversed ... A: Sorry for the delay, I'm having computer issues... Let x = the first digit (10's) and y = the ... | |
| digit problem | 8/1/2009 |
| Q: A two digit number is three less than seven times the sum of its digits. If the digits are reversed ... A: Sorry for the delay, I'm having computer issues... Let x = the first digit (10's) and y = the ... | |
| Algebra | 7/29/2009 |
| Q: Write an equation of the line L that satisfies the given conditions. Where possible, express your ... A: y=mx+b you know x, m and y, so you just need to solve for b to get the value of b for your eq. ... | |
| Fractions | 7/23/2009 |
| Q: Helen spent 1/4 of her weekly wage on rent and 5/6 of the remainder on living expenses.She saved ... A: Let x = weekly wage x - 1/4x - (5/6(x-(1/4x))) = 40 x - 1/4x - (5/6x - 5/24x) = 40 x - 1/4x - 5/6x ... | |
| i need help! | 7/21/2009 |
| Q: I was curious if you could help me with these problems. Thank you so much! 1. An express train ... A: 1. An express train and a local train both leave Gray’s Lake at 12:00 noon and head for Chicago 60 ... | |
| Percentage help | 7/20/2009 |
| Q: If I have $100.00 invested into a fund, and it stays at + .04% and pays a dividend monthly, how much ... A: 4 cents per month. To figure percents, I usually start with 10% because all you do is move the ... | |
| Urgent math review... | 7/19/2009 |
| Q: I have a 350 problem review packet and I have completed most of it but there are several questions I ... A: I'll explain some so that you understand the process and then get the rest. Just eyeballing these, ... | |
| average plz explain the solution .... | 7/17/2009 |
| Q: a batsman having a certain average in 11 matches, he scores 129 runs in 12th match and his average ... A: I have no idea what question I answered, but it obviously wasn't the one asked. A good lesson to ... | |
| average plz explain the solution .... | 7/16/2009 |
| Q: a batsman having a certain average in 11 matches, he scores 129 runs in 12th match and his average ... A: x/11 = 129 x+y/12 = 129+9 solve the first eq for x by multiplying both sides by 11 x = 1419 now, ... | |
| College MathematicsI | 7/13/2009 |
| Q: I am a adult going back to school and i am having some trouble understanding these problem and how ... A: These are all done the same way. I'll do two to show you how and you should be able to get the ... | |
| Math, please help! | 7/12/2009 |
| Q: 1. Simplify: 30x^2y^3/-6x^3y^2 a) -5xy b) -5y/x c) 5x^2y d) 1/-5xy 2. Simplify: [-2x^2/y] ... A: 1. Simplify: 30x^2y^3/-6x^3y^2 b) -5y/x 2. Simplify: [-2x^2/y] ^4 Maybe you misstyped b or d?, ... | |
| Algebra help pleaseee | 7/12/2009 |
| Q: 21. Solve: (t - 2)^3 - (t - 2) = 0 a) t = -2; t = -3; t = -1 b) t = 2; t = 3; t = 1 c) t = -2; ... A: 21. Solve: (t - 2)^3 - (t - 2) = 0 b) t = 2; t = 3; t = 1 22. Solve: (x^2 - 3)^2 + (x^2 - 3) - ... | |
| Algebra | 7/12/2009 |
| Q: 11. Pipes A and B can fill a storage tank in 8 hours and 12 hours, respectively. With the tank ... A: 11. Pipes A and B can fill a storage tank in 8 hours and 12 hours, respectively. With the tank ... | |
| Math help Please!!! | 7/11/2009 |
| Q: So a lot of the stuff they have me doing i haven't seen in YEARS!! Can you please show me step by ... A: 1. Solve for y in the following proportion y/10 = 3/5 This one is easy, just convert 3/5 to ... | |
| HELP! | 7/8/2009 |
| Q: Problem #1 Donna invested her $33,000 bonus and received a total of $970 in interest after one year. ... A: x=amt invested at 4% y=amt invested at 2.25% x+y= 33000 (x=33000-y) .04x + .0225y = 970 ... | |
| grade 11 math | 7/7/2009 |
| Q: a uniform-width boardwalk is built around the inside edge of a rectangular parkland that is 10 m by ... A: 63cm the rectangle is 1000x1500cm for a total of 1,500,000cm^2. 20% of 1,500,000cm is 300,000, so ... | |
| equation | 7/3/2009 |
| Q: 1) If x(2x+1)=0 and (x+1/2)(2x-3)=0, then x=? 2) For what values of 'k' will the pair of equations ... A: 1) If x(2x+1)=0 and (x+1/2)(2x-3)=0, then x=? 2x^2 +x + 0 = 0 and 2x^2 -2x - 3/2 = 0 subtract ... | |
| A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. | 7/3/2009 |
| Q: A truck can be rented from Basic Rental for $50 per day plus $0.20 per mile. Roadrunners charges $20 ... A: 50 + .2x < 20 + .5x 30 < .3x 100 < x or x > 100 You would need to drive over 100 miles per day to ... | |
| word problem | 7/2/2009 |
| Q: if sue paints a house in 4 hours and john paints same house in 6 hours how long will it take them to ... A: The way to answer these is to see how much of a house each can paint in one hr. Sue can paint 1/4 ... | |
| 'y' math problem | 6/25/2009 |
| Q: my fourth grade grandchild is doing math problem with finding the 'y' problem. I understand on ... A: Not that I know of. It's still a matter of finding the lowest common denominator. I the example ... | |
| Time and speed | 6/22/2009 |
| Q: Jane covered a distance of 340 miles between city A and city B, taking a total of 5 hours. If part ... A: distance = time * speed Let y = distance traveled at 80mph and x=distance traveled at 60mph 340 = ... | |
| Finding all real solutions of the equation: | 6/18/2009 |
| Q: 1/(x-1) + 1/(x+2) = 5/4 A: Start by multiplying each part by 4(x-1)(x+2), the denominator and part of the numerator will cancel ... | |
| Mills | 6/13/2009 |
| Q: Here is my question and solution. Can you reply indicating whether or not it is correct? Express ... A: I believe your answer is correct. My process was this. I first figured out, what is one mill ... | |
| sets | 6/10/2009 |
| Q: In a certain examination 35 percent of the students failed in Mathematics and 20 percent failed in ... A: I might be missing something, but if 10% failed in both (ie 90% passed both) and there are 110 that ... | |
| maths | 6/9/2009 |
| Q: how can i convert 0.383 to rational in which both the 3's are repeating but 8 doesn't repeat. A: I'm not sure what you're asking because .383 *is* a rational number. If you want to turn it into a ... | |
| Maths | 5/29/2009 |
| Q: Find the smallest three digit number exactly divisible by 6,8 and 12. A: 24. the easiest way to get the answer is to break down the numbers into their lowest multiples. 6 ... | |
| profit and loss | 5/28/2009 |
| Q: A certain used-book dealer sells paperback books at 3 times dealer's cost and hardbacks books at 4 ... A: Let h = hardback books and p = paperback books h + p = 120 (3h-h)+ (4p-p) = 300 h=120-p 2(120-p) ... | |
| Math | 5/16/2009 |
| Q: Write and equation of the line containg the given point and perpendicular to the given line ... A: Write and equation of the line containg the given point and perpendicular to the given line (8, ... | |
| weighted averages. | 5/15/2009 |
| Q: Am rusty in math and need to figure out the following. If i have a class where grades are assigned ... A: You would determine the grade (percentage) for quizzes and the grade for tests and then multiply the ... | |
| percentage | 5/9/2009 |
| Q: 10% of what number = 100,000 20% of what number = 100,000 what is the formula to figure this out? ... A: How would you find a percentage of a number? Say you wanted 10% of 100, you would multiply 100(.1) ... | |
| Basic Math | 5/8/2009 |
| Q: Identify the units on x in each of the following equations. 1. a)x=yz (both y and z are measured ... A: 1. a)x=yz (both y and z are measured in feet) Square feet b) x=3y^2 (y is measured in inches) ... | |
| Math, Solving Equations | 5/4/2009 |
| Q: 1) When Ms. Marley was three times as old as Jennie, they were seven years younger than they are ... A: 1) When Ms. Marley was three times as old as Jennie, they were seven years younger than they are ... | |
| NEED IMMEDIATE HELP PLEASE!!! | 4/29/2009 |
| Q: I need loads of help with loads of math problems, please please help me!! 1-Find the linear equation ... A: 1-Find the linear equation in slope-intercept form given the following information:m = -1 and b = ... | |
| Substitution | 4/29/2009 |
| Q: An Apartment building contains 80 apartments. One bedroom apartments rent for $850 per month. ... A: let t = 2 bedroom apartments and b = one bedroom apartments. t + b = 80 and 1050t + 850b = 78400. ... | |
| algebra2 | 4/27/2009 |
| Q: 18. Determine the range of the linear equation: y = 1 - x^2; Domain = {-1, 0, 1} a.) Range ... A: 18. Determine the range of the linear equation: y = 1 - x^2; Domain = {-1, 0, 1} a.) Range {0, ... | |
| finding valu of 'x' | 4/27/2009 |
| Q: how do i find value of 'x'in following equation. I know the answer but cannot reshape the formula: ... A: Start by adding 28.26 to both sides of the equation ((139x)-139))-28.26 +28.26 = -4.63+28.26 ... | |
| Card Word problem | 4/25/2009 |
| Q: Please Help I Don't Understand. How many cards must be drawn from a standard 52-card deck to be ... A: IF, you somehow managed to pick all the hearts, then all the spades and then all the clubs in order, ... | |
| Math Word Problems | 4/15/2009 |
| Q: If 18 feet, 10 inches is cut from a wire that is 25 feet, 8 inches long, what is the length of the ... A: Easiest way to do the first one is to convert both measurements to inches, subtract and then convert ... | |
| involving percent | 4/14/2009 |
| Q: 1) 6.5 of what number is 325? Do I divide 325 by 6.5 to get my answer? Estimate the amount in ... A: The way I estimated 48.3% of 1,500 was to first, note that 48.3 is fairly close to 50%. 50% is easy ... | |
| Retaining Information | 4/13/2009 |
| Q: This isn't much a of a math question per say just some advice really. Whenever i go to class for ... A: It seems that some ppl's brain are hardwired for math and some aren't and they have to struggle. ... | |
| involving percent | 4/13/2009 |
| Q: 1) 6.5 of what number is 325? Do I divide 325 by 6.5 to get my answer? Estimate the amount in ... A: 1) 6.5 of what number is 325? Do I divide 325 by 6.5 to get my answer? Yes sorta, assuming that ... | |
| math | 4/8/2009 |
| Q: 2/3q + 5 = 3/4 what does q equal? A: subtract 5 from both sides of the = sign, then divide both sides by 2/3 (the same as multiplying by ... | |
| fractions and construction | 4/4/2009 |
| Q: I have a floor that is 12'6" in wideth and 10'4" in length. I need to express it in squared feet. ... A: Convert the floor measurements to inches, which gives you the 18600 sq inches. The tiles are 25 sq ... | |
| Multi-Step equations | 4/3/2009 |
| Q: I am a grade 8 student and I'm not to good with math. We have a quiz tomorrow on Multi-step ... A: First you multiply what's in the parenthesis by 2 2(4x-3)-8=4+2x 8x-6-8=4+2x Combine the like ... | |
| Insurance Calculation | 4/2/2009 |
| Q: Here is a calculation that I saw in a business mathematics textbook regarding insuring a home. ... A: I know nothing about insurance, but as near as I can figure the reason you multiply by .5 is because ... | |
| adding 3 fractions | 3/26/2009 |
| Q: how would you explain how to add 1/5 2/3 and 5/6 A: First, you have to find the lowest common denominator. That means the lowest number that all of the ... | |
| hello | 3/22/2009 |
| Q: 5. Determine the vertex coordinates for: f(x) = 2(x - 5)^2 - 8 a.) (5,-8) b.) ... A: 5. Determine the vertex coordinates for: f(x) = 2(x - 5)^2 - 8 a.) (5,-8) 6. ... | |
| maths | 3/19/2009 |
| Q: there are 13 players in a team who can expect a bonus of £437 between them. Of those players 11 have ... A: I know there is a better way to figure this, but this is how I did it. (you can do it with ... | |
| help! algebra2 | 3/19/2009 |
| Q: 31. Solve: x^2 - 2x - 5 = 0 32. Solve: p^2 + 20p + 200 = 0 33. Solve: x x ... A: For all of these, you're going to use the quadratic formula (-b + - sqrt{b^2-4ac})/{2a} , where ... | |
| algebra | 3/18/2009 |
| Q: I'm having difficulty with this question, can you please help me x+3/5 =-2 i know the answer ... A: If you wrote the equation correctly, the answer is NOT -13, it is -13/5. You can do this one of two ... | |
| Daughters math question | 3/17/2009 |
| Q: Use the numbers 1, 2, 3, 4, 5, and 6 to write a subtracion problem with two mixed numbers that have ... A: The only way I could figure to do this was to fill in numbers and see if they worked out. The ... | |
| Calculating tip in head quickly? | 3/15/2009 |
| Q: This isnt homework help, but I didnt see math anywhere else in this site, so I hope this is ok. I ... A: If you're in the US, the tip should be anywhere from 15-20%. To figure 15%, first, round the bill, ... | |
| alg2 | 3/14/2009 |
| Q: 20. Simplify: sqrt28 ------- 4i sqrt7 a.) -i / 2i b.) -i / ... A: 20. Simplify: sqrt28 ------- 4i sqrt7 c.) 1 / 2i 21. Solve: ... | |
| Math Disagreement | 3/7/2009 |
| Q: Please help solve this math disagreement between me and my roommate. The rent where I live now is ... A: Of course, as math rules dictate, you are correct. Try to explain it using a number line. Mark 525 ... | |
| Math - equations and inequalities | 3/4/2009 |
| Q: The perimeter of a rectangle is less than 90. What is the width? A) W < 12.5 B) W < 20 C) W < 25 D) ... A: There is not enough information to answer this question. Any of them could be the answer. If the ... | |
| math | 3/1/2009 |
| Q: if a train cross a pole in 10 second and cross a 150 mtr length Platform in 20 second.then findout ... A: Just use the eq d = rt where d = distance, r = rate (speed) and t = time. d = 10r (think of the ... | |
| venn diagrams | 2/26/2009 |
| Q: The following venn diagram is part of my daughter's homework: Mr. Russo took a survey of fifth ... A: You already do. If there are 65 that like cake, 37 that like ice cream and 6 that like neither, if ... | |
| patterns | 2/20/2009 |
| Q: what are the patterns in each of the 2x 4x and 8x tables and between them all? A: Well, every multiple of 2 is a multiple of 4 and 8 and every multiple of 4 is a multiple of 8. 4 is ... | |
| math | 2/20/2009 |
| Q: Draw an array to show equation and find the product. example: 7x3= A: Not sure exactly what you need, but it's probably as simple as 7 3 21 1 2 2 3 6 18 and draw ... | |
| formula | 2/17/2009 |
| Q: betty has 100 dollars more than bob.after spending 20 dollars betty has 5 times more than bob. how ... A: Let's say betty has x dollar and Bob has y dollars. Therefore, y+100=x If betty spends $20 ... | |
| algebra 2 | 2/15/2009 |
| Q: Houston, I have solved these problems but I want to make sure they are correct, so could you tell me ... A: 1. | 3 x + 2 | > 4 a.x < -2 or x > 0.67 2. 8 = | 5 y + 2 | c.y = -2 or y = 6/5 3. | 1 - 0.5 p ... | |
| division and decimal points | 2/4/2009 |
| Q: ok, can you show me the steps in solving this 2 problems. #1-0.27 divided by 1.2= #2--45 divided by ... A: for long division, you need a whole number divisor. In order to do that, move the decimal in both ... | |
| Y-Intercept Formula | 2/4/2009 |
| Q: I have been having a little trouble with finding the Y-Intercept Formula from the slope of two ... A: if you have the slope and a coordinate of a point on a line, you can find the y intercept by ... | |
| fraction w/a remainder | 1/30/2009 |
| Q: I'm not sure how to get the answer to this problem. 304/96342. I have the answer, but I don't ... A: Ok, I think you have the fraction backwards, I think its supposed to be 96342/304. You start by ... | |
| fractions and decimals | 1/29/2009 |
| Q: How do I figure out which fraction is the equivalent to 2.1456 and 89.050 ?? This is hard!! A: Actually, it's fairly simple if you know how to do it :-). What you're looking for is a/b = 2.1456 ... | |
| triangle | 1/28/2009 |
| Q: i have a triangle with a total square meter measurement of 68sq meters. How do I work out what ... A: the area of a triangle is bh/2 where b = base and h = height so the answer could be any infinite ... | |
| Help with perpendicular | 1/26/2009 |
| Q: find the equation of the line perpendicular to the line 2x-3/4y=6 and passing through the ... A: Perpendicular lines have opposite and inverse slopes. Therefore, a line perpendicular to the line ... | |
| Adding Fractions | 1/25/2009 |
| Q: How do you compute this problem: 3 1/7 - 3/7 + 5/7 = ? and 5 1/7 - 4/7 + 1 5/7 = ? I do not ... A: Easiest thing to do is the addition first and then you have enough 7ths in order to do the ... | |
| general math | 1/18/2009 |
| Q: how do i find the lcm and gcf of 18 and 24 and also how do i find out ''name the parts of a circle'' A: The easiest way to find the lcm and gcf is to write down the factors and multiples of each number ... | |
| Mathematics | 1/15/2009 |
| Q: The following questions reflect situations which could be encountered in any workshop or home. Show ... A: 2.1, 1) she's rounding both up (if she rounded one up and one down, she'd be a lot closer to the ... | |
| Metric conversion | 1/14/2009 |
| Q: Suppose you have a 100-mL cup, a 300-mL cup, and a 500-mL cup. List two different ways you can ... A: 1) Fill the 500 ml and put it into the L container. Then measure the 300 cup and add to the L ... | |
| hello /algebra2 | 1/10/2009 |
| Q: 22. Solve the system for (c,d): d = 2 - 6c 0.5 d - c =1 a.) (-4,2) b.) (0,2) c.) ... A: 22. Solve the system for (c,d): d = 2 - 6c 0.5 d - c =1 b.) (0,2) 23. Solve the system: ... | |
| math | 1/7/2009 |
| Q: how do i draw aperimeter that equals 35 cubic units? A: area (35 cubic units) is width times length x height, so a cube that is 1 units wide by 7 units deep ... | |
| help! algebra2 | 1/4/2009 |
| Q: 26. When Ace Airlines changed to planes that flew 100 km/h faster than its old ones, the time of its ... A: 26. When Ace Airlines changed to planes that flew 100 km/h faster than its old ones, the time of its ... | |
| algebra | 12/30/2008 |
| Q: If Tom can mow the lawn in 6 hours and Kelly can mow the lawn in 5 hours. How long will it take ... A: The secret to these type of questions is to put them into equivalent time frames. Let's use 1 hr. ... | |
| help/algebra2 | 12/29/2008 |
| Q: 1. Solve: 3u/5 - 5/6 = u/ 10 a.) u = 25 / 21 b.) u = -5 / 3 c.) u = 5 / 3 d.) ... A: 1. Solve: 3u/5 - 5/6 = u/ 10 c.) u = 5 / 3 2. Solve: s - 2 - s - 1 = 1 ----- ----- - ... | |
| hello /algebra2 | 12/25/2008 |
| Q: 31. Simplify: a^-2 - b^-2 / a^-1 + b^-1 a.) b - a / ab b.)1 / ab c.) b + a / ab ... A: 31. Simplify: a^-2 - b^-2 / a^-1 + b^-1 c.) b + a / ab 32. Simplify: 1 - 1 - - ... | |
| MATH | 12/22/2008 |
| Q: How do I go about opening a savings account?If I deposited $200 into an account earning ... A: Each time unpaid interest is compounded and added to the principal, the resulting principal is ... | |
| 4th Grade Fraction Word Problem | 12/17/2008 |
| Q: Word Problem: Aaron has 9 new pencils. 4 of them are not red, 3 of them are blue, and 2 of them are ... A: Tricky question. This is a matter of really reading the question well. Assuming that he only has ... | |
| substitution | 12/15/2008 |
| Q: 2x+y=3 x-y=3 A: 2x+y=3 x-y=3 Solve one eq for a variable (ex 2x+y=3 to y = 3-2x). Then substitute the value of y ... | |
| Number Puzzle | 12/14/2008 |
| Q: I have a number puzzle for my little brother's math homework (sad story, I'm 25, he's 10!). I have a ... A: There's no way to do it without decimals. Algebraically, the eq is a+b+c = 600 b-a = 10 or b=10+a ... | |
| Math | 12/12/2008 |
| Q: Find the equation of the line , in slope-intercept form , perpendicular to y=2x+3 passing through ... A: The first thing you need to know is that perpendicular lines have inverse and opposite slopes. So, ... | |
| algebra 1 | 12/11/2008 |
| Q: i need to know how to write an equation for the line that is perpendicular to the given line and ... A: The first thing you need to know is that perpendicular lines have inverse and opposite slopes. So, ... | |
| hello /algebra2 | 12/11/2008 |
| Q: 3.) Simplify: 9 - 4z^2 / 6z^2 - 5z - 6 a.) -1 b.) -3 - 2z / 3z + 2 c.) 3 + ... A: 3.) Simplify: 9 - 4z^2 / 6z^2 - 5z - 6 b.) -3 - 2z / 3z + 2 12. Simplify: (n-1)^2 = 1 d.) n = ... | |
| algebra | 12/9/2008 |
| Q: How do I write the slope intercept form of an equation of the line that passes through the given ... A: Being that the line is parallel to the given eq, that means they have the same slope, so in your ex, ... | |
| Algebra | 12/9/2008 |
| Q: How do I solve this equation - Write the equation of a line through the given points or through ... A: First, determine the slope. 8-7/6-5 = 1 Then, solve for the y intercept (y=mx+b). 7 = 1(5)+b 2 = ... | |
| SUBSTITUTION EQUATIONS | 12/8/2008 |
| Q: Y=3X+2 Y=-2X+2 I DONT UNDERSTAND NOTHING TO MY ALGEBRA TEACHER HE DOESENT KNOW HOW TO SHOW US A: Ok, there are a couple of ways you can solve this. If both are = to y, then both are equal to each ... | |
| Linear Systems | 12/5/2008 |
| Q: We are trying to figure out how to do the following problem: 3x-5y=8 -2x+3y=3 A: There are at least 2 methods you can use. One is to solve one eq for a variable and then insert ... | |
| turning problems from point slope form to slope intercept | 12/4/2008 |
| Q: a line passes through (1,-5) and (-3,7). write the equation in point slope form then rewrite in ... A: slope is y2-y1/x2-x1 so the slope of the line through the two coordinates is 7-(-5)/-3-1 = -4. ... | |
| math | 12/3/2008 |
| Q: what is f(-3) if f(x)=4xsquared + 1? what is the value of y when x=4 if y= 5x+2? what is f(-3) if ... A: what is f(-3) if f(x)=4xsquared + 1? 37 what is the value of y when x=4 if y= 5x+2? 22 what is ... | |
| Slopes | 12/2/2008 |
| Q: Hey i need to know the basic stuff about slopes. What the formula is. How to do it. Anything ... A: Use this one and type slopes into the search box on the upper right. Apparently the search isn't ... | |
| SUBTRACTION METHOD | 12/1/2008 |
| Q: WHAT IS IT A: Hard telling with so little information, but I'm guessing it's algebra and that it's eliminating one ... | |
| 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: Treat it as an = sign and do the same thing (isolate the variable by "undoing" everything that has ... | |
| 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: No. What you do to one side of the equality, you have to do to the other. So, when your teacher ... | |
| hi | 11/30/2008 |
| Q: wow you're pretty good :) 23. Write in scientific notation: 762.20 a.) 76.220 x 10^1 b.) ... A: They're getting harder... what grade are you in? 23. Write in scientific notation: 762.20 c.) ... | |
| hello /algebra2 | 11/29/2008 |
| Q: 13. Simplify: [3 / 4]^-1 [-4 / 3]^-2 a.) 1 b.) 4 / 3 c.) 3 / 4 d.) -1 ... A: 13. Simplify: [3 / 4]^-1 [-4 / 3]^-2 c.) 3 / 4 14. Write without using fractions: x^2 / yz^4 ... | |
| help! algebra2 | 11/27/2008 |
| Q: 31. Solve the inequality: t^3 < 9t^2 32. Solve the inequality: 4x(x + 1) ≥ 3 33. Factor ... A: 31. Solve the inequality: t^3 < 9t^2 t<9 32. Solve the inequality: 4x(x + 1) ≥ 3 -3/2 > x > ... | |
| hello /algebra2 | 11/26/2008 |
| Q: 1. Factor the polynomial: 121x^2 - 1 a.) (11x - 1)(11 - 1) b.) (11x + 1)(11x - 1) c.) (11x + ... A: 1. Factor the polynomial: 121x^2 - 1 b.) (11x + 1)(11x - 1) 2. Factor the polynomial: 16x^2 + ... | |
| hello /algebra2 | 11/26/2008 |
| Q: 21. Simplify: 2z^2 - 5)^2 a.) 4z^4 - 20z^2 + 25 b.) 4z^2 + 10z^2 - 25 c.) 4z^4 + 20z^2 - ... A: 21. Simplify: (2z^2 - 5)^2 a.) 4z^4 - 20z^2 + 25 22. Simplify: x^2(x - 3)(x + 3) b.) x^4 ... | |
| 4th Grade Question Regarding Line Plots | 11/25/2008 |
| Q: We have been asked to make a line plot of Laura's test scores. The following has been provided. ... A: Draw a horizontal line. Label the left end 80 and the right end 100. In the middle, between 80 and ... | |
| math | 11/24/2008 |
| Q: Which of the following is the correct graph for x=3 and x= -2? A: Well, without seeing the graphs, it's kinda hard to tell. However, if it's one question and it's ... | |
| qustion | 11/23/2008 |
| Q: 1. ratio of the father and son is 5:3 the sum of their age is 40.what will be the ratio of their age ... A: The ratio is 5:3, so that means 5x + 3x = 40, 8x = 40, x = 5. That means, currently, the father's ... | |
| Tax | 11/22/2008 |
| Q: I'm not sure on how to add the tax in exactly. Here's the problem: Ms. Munch bought a watch with ... A: You add the tax in after you take of the discount. (129-(129(.2)))*1.06= $109.39 The above is the ... | |
| linear euaqation word problems | 11/22/2008 |
| Q: Robert is on a diet and can have 500 calories for lunch. A 3- ounce hamburger on whole wheat bread ... A: (500 - 315 - 145)/10 = 4 Algebra is logic, so think about this logically. Although it doesn't say ... | |
| math | 11/21/2008 |
| Q: 1.if a,b,c share 1400 between themselves.A receive half of b:b receive half of c:how much c receive. ... A: 1.if a,b,c share 1400 between themselves.A receive half of b:b receive half of c:how much c receive. ... | |
| this is the correct one | 11/21/2008 |
| Q: i know your getting this one twice lynn but i forgot to add the powers^ to a couple of them -sorry ... A: 21. h(x) = 2x^3 - 5x^2 Find h(-5) a.) -375 22. f(x) = 15 - 6x g(x) = 3/5 x Find ... | |
| math please help | 11/19/2008 |
| Q: can you help me to figure out how to simplify and solve line by line 12y=2y+40 A: The goal is to get y by itself, so you have to start by combining like terms. To do that, subtract ... | |
| help! | 11/17/2008 |
| Q: 11. f(x) = 4x + 2 h(x) = -7x - 5 Find f(x) - h(x) a.) 11x - 3 b.) 11x + 7 c.) ... A: f(x) = 4x + 2 h(x) = -7x - 5 Find f(x) - h(x) d.) -3x - 3 12. f(x) = 4x + 2 h(x) = -7x - ... | |
| Locker problem | 11/17/2008 |
| Q: Famous Locker problem Here is the famous locker problem: Imagine you are at a school that has 100 ... A: All the lockers will be open except those that are perfect squares (ie, 9, 16, 25, 36, 49, 64, 81, ... | |
| help! algebra2 | 11/16/2008 |
| Q: 11. Martha's age is twice that of her brother Ned. The sum of their ages is 24. Find the age of ... A: Not really a follow up, next time, start a new question.1. Solve the system: x + y = 4 ( y + 2 ) ... | |
| help! algebra2 | 11/16/2008 |
| Q: 11. Martha's age is twice that of her brother Ned. The sum of their ages is 24. Find the age of ... A: 11. Martha's age is twice that of her brother Ned. The sum of their ages is 24. Find the age of ... | |
| algebra2 | 11/14/2008 |
| Q: appreciate it very much. what would you get for the problem? 12. Find the linear equation given ... A: 12. Find the linear equation given the following information:m = -4/3 and y-intercept = -1 d.) y = ... | |
| FRACTION EQUATIONS | 11/14/2008 |
| Q: How do I explain to my daughter the steps in solving this fraction equation. g+1 3/4=5 5/12-3 1/2 A: Before I can answer, I need to know the actual problem. Is the eq (g+1)(3/4) = (5 5/12) - (3 1/2) ... | |
| problem solving | 11/13/2008 |
| Q: Execute each of the indicated multiplications: (1). x(a+b) (2). 3x^2(7x + 8y) (3). (3x +2)(8x +5) ... A: (1). x(a+b)= xa+xb (2). 3x^2(7x + 8y)= 21x^3 + 24x^2y (3). (3x +2)(8x +5) = 24x^2 + 31x +10 ... | |
| expressions | 11/12/2008 |
| Q: I am just not getting it :( Simplify the following expressions by combining as many terms as ... A: combining terms, just means, take all the terms that are the same and add them together. Let's say ... | |
| help! algebra2 | 11/11/2008 |
| Q: i have learned alot from this website. This place is awesome! what would you get for these problems ... A: 1. a.) Range {-5, -2, 1, 4} 2. a.) Range {0, 1} 3. a} Range {-5, -12, 0} 4. b.) Range {0, -2} ... | |
| problem solving college | 11/3/2008 |
| Q: . Given the slope of the line and a point on the line, find the equation for each line. (a) A line ... A: I'll explain how to do it and do the first one. You can practice on the other two. (a) A line of ... | |
| problem solving college | 10/31/2008 |
| Q: Identify the units on the variable x in each of the following situations: 1. x = fp both f and p ... A: Not sure if this is what you're looking for, but I think 1 is sq inches, 2 is cubic feet, 3 is ... | |
| Situation at work | 10/30/2008 |
| Q: 4.1 Seven equal lengths have to be cut from a single plank of wood, 2 metres long. An ordinary hand ... A: 4.1 28.5cm each (2 metres = 200 cm, divided by 7 = 28.5) 4.2 For this one, take each of the ... | |
| problem solving in college | 10/29/2008 |
| Q: Solve for x in each of the following: (a).x = y^2 z^3 if y = 3 and z = 2 (b). x = y^2 z / t if y = ... A: You're given the value of certain variables, so just plug those values into the equations. Solve ... | |
| a thank-you and a follow-up | 10/28/2008 |
| Q: this place really shows my mistakes and helps me get the right answers thank you Lynn. 1. Solve: | ... A: 1. Solve: | 3 x + 2 | > 4 a.)x < -2 or x > 0.67 2. Solve: 8 = | 5 y + 2 | c.)y = -2 or y = 6/5 ... | |
| Irrational Number | 10/28/2008 |
| Q: 1. 4√2 x 5√2 = 4(1.4)(5)(1,4)=39,2 2. 6√ 8 + 3√8 = 9√ 16=36 3. To ... A: Are you just checking your work, since you have answers for each question? Assuming your teacher ... | |
| math: number pattern's | 10/27/2008 |
| Q: i am trying to figure out how to teach my 5th grader to understand how to figure out how to solve ... A: There's no real process to solving number patterns, it's mostly trial and error. You just have to ... | |
| help! | 10/26/2008 |
| Q: i just need to check my work- thankyou 31. Solve: -6 ≤ 2 - 3m ≤ 7 32. Solve: ... A: 31. -5/3 ≤ m ≤ 8/3 32. -4 > n ≥ 1/2 33. n > 1/5 and n < -1/2 (this can't be, so ... | |
| yess! thank you i knew i was right | 10/24/2008 |
| Q: 11. simplify: -2 (5 - 8)^3 which choice?: a.)18 b.)54 c.)-29 d.)-18 12. Simplify: ... A: With multiple choice, it very easy to just "test" the answers to figure out which one is correct. ... | |
| help! algebra2 | 10/22/2008 |
| Q: 11. simplify: -2 (5 - 8)^3 which choice?: a.)18 b.)54 c.)-29 d.)-18 12. Simplify: ... A: I'll do a couple of these, but I'm not going to do your entire homework assignment... 11. simplify: ... | |
| Basic math ( decimal) | 10/22/2008 |
| Q: 1. Write the decimals in order from smallest to larget 0.05, 0.0057, 0.005 2. ... A: 1. Write the decimals in order from smallest to largest 0.005, 0.0057, .05 For the remainder, if ... | |
| Math - Basic Algebra | 10/22/2008 |
| Q: I do not understand how .30c + 2000 + .60c + .06c = $50,000 One person said c = .04, but I don't ... A: You have to solve for c. In order to do that, start by combining like terms, so you get 2000 + .96c ... | |
| math | 10/6/2008 |
| Q: can you tell me how do you do estimation of sum? please and thank you. and can you tell me if i can ... A: An easy way to estimate a sum is to round the numbers. If you want to estimate 80, 205, 106, 140, ... | |
| algebra equations | 10/4/2008 |
| Q: how do i get the answer to this problem -1+x=3 A: If you want to get the variable (x), by itself, you need to "undo" everything that has been done to ... | |
| Long division | 10/1/2008 |
| Q: I left school years ago and just wanted to refresh my knowledge on basic maths principles. One thing ... A: 34623 divided by 1292 (the process is the same whether it's big or small numbers). ... | |
| Biochemistry | 9/28/2008 |
| Q: how do I do the conversion step by step when calculating molecules to moles. I can not seem to get ... A: Don't know too much about molecules, but mathematically if it's 3.01 x 10^24 molecules to moles, ... | |
| math | 9/26/2008 |
| Q: 101,376 inches equals how many miles A: 1.6 The easy way to get that is to go to http://www.onlineconversion.com/area.htm and type in the ... | |
| NEED HELP WITH THE MATHS BEHIND A REAL LIFE SCENARIO | 9/25/2008 |
| Q: I have a real life maths problem scenario but I need a maths expert to help me as I cannot get my ... A: Ok. Hopefully this will be the last response and things will be clear for both of us. If (and I ... | |
| NEED HELP WITH THE MATHS BEHIND A REAL LIFE SCENARIO | 9/24/2008 |
| Q: I have a real life maths problem scenario but I need a maths expert to help me as I cannot get my ... A: Bottom line, as far as I can see from your explanation, is yes, you would be saving by buying the ... | |
| decimal points in mathematics | 9/24/2008 |
| Q: what are the basic rules when using decimal points in basic division questions? A: basic rule for decimals when doing long division is that you move the decimal in the divisor, so ... | |
| Equation for perpendicular line | 9/24/2008 |
| Q: My son and I are trying to find the equation of a line perpendicular to a given line. There are, ... A: If you are not given any points that the perpendicular line has to go through, then y = -1/3x + 2 ... | |
| real solutions? | 9/24/2008 |
| Q: I have a equation for which I need to find the real solutions Q:- The equation square root (under ... A: B If you want to know how to solve it. You sq both sides of the eq, which gives leaves you with ... | |
| NEED HELP WITH THE MATHS BEHIND A REAL LIFE SCENARIO | 9/23/2008 |
| Q: I have a real life maths problem scenario but I need a maths expert to help me as I cannot get my ... A: Ok. I think the answer to your question is yes, it would benefit you to buy cheaper gas. If they ... | |
| Algebra II | 9/23/2008 |
| Q: Write an equation for the line that goes through (-3,-1) and is perpendicular to y=-2/5x-4 A: If the line is perpendicular to y = -2/5x-4, then the slope of the line you're looking for is 5/2 ... | |
| 8th grade algebra | 9/22/2008 |
| Q: Please help me help my daughter 15+(-32)= A: 15+(-32)= is the same as 15 - 32, which = -17 When you have parenthesis, if the sign in front is ... | |
| Basic Math- Ratios | 9/21/2008 |
| Q: How can I take the fraction ratio 5 3/5 to 2 1/10 and reduce it to simplest form? A: First step is to turn them into whole fractions (not mixed), so 5 3/5 = 28/5 and 2 1/10 = 21/10. ... | |
| Discount question | 9/18/2008 |
| Q: PhotoFinish Co. is offering its preferred customers a 25% discount on its most popular product ... A: Discount would be .25*55 and total price is 55 - .25(55) Discount = $13.75 and final price is $41.25 ... | |
| Fractions & Division | 9/18/2008 |
| Q: Why does a fraction indicate dividing the numerator by the denominator, as in 2/5 represents 2 ... A: I'm not sure how to answer that... the bar is just another way to write a division sign. If you ... | |
| RE: Finding the slope | 9/16/2008 |
| Q: My professor's pretty dynamic so I can't quite understand the way he teaches the class. Help! The ... A: The formula to find the slope when you have 2 points is y2-y1/x2-x1, where the one and two mean the ... | |
| Finding the Lines | 9/15/2008 |
| Q: I get so confused about these problems: what formula would i use? Given the following equation: ... A: There's no formula, it's more of a visual in this case. The thing about math is that there are ... | |
| Finding the Lines | 9/14/2008 |
| Q: I get so confused about these problems: what formula would i use? Given the following equation: ... A: The easiest way to solve this is to make a table with x and y values. Start with x = 0 and solve ... | |
| Math | 9/13/2008 |
| Q: the symbols < / > I'm confused on the direction meanings greater than less than. A: This is the way I remember it... Look at the symbol, the point is less then the other side, right? ... | |
| common and least common multples | 9/10/2008 |
| Q: 8 and 12 3 and 15 7 and 11 9 and 10 A: Least common multiple, just means, what is the smallest number that both numbers will go into ... | |
| Solving equations... | 9/10/2008 |
| Q: i dont understand this math stuff im in 8th grade... umm here is a problom 25x+13-33X=-130 A: Ok, you didn't actually say what you needed to do with the equation, so I'll assume that you need to ... | |
| regrouping with multiplcation | 9/9/2008 |
| Q: My son is in the 5th grade and their math is sort of different than when I was in school. the ... A: Ok, had to look around a little, but basically, what it means is how many times the product carries. ... | |
| least common multiples | 9/7/2008 |
| Q: please i can't get the least common multiple of 2,3 5,7 and 11,19 I need help A: Simply, the question is, what is the smallest number that 2,3,5,7,11,19 all go into. Usually, the ... | |
| Algebra 2 | 9/5/2008 |
| Q: At noon one day, the river peaked at 11 feet above flood stage. It than began to recede its depth ... A: a) noon to 3:30 is 3.5 hrs, 3.5*4=14 inches, so the river is still 9'10" above flood stage. b) t ... | |
| math | 9/1/2008 |
| Q: What are 10's equal to? A: I'm not sure I understand your question. Can you give me some more info? "10's" are the second ... | |
| y-intercept in graphs | 8/30/2008 |
| Q: I was wondering what the significance of y-intercept was in graphs. I look forward to your reply. ... A: Not sure I understand the question... the y intercept is when x=0 or when the line crosses the y ... | |
| math question | 8/29/2008 |
| Q: what type of number has an odd number of factors? give examples A: Well, it can't be prime because prime numbers always have two factors, 1 and the number itself. The ... | |
| Math (algebra) Helping daughter EEEEE | 8/28/2008 |
| Q: She has a problem where x=7 and y= -2 x=2 and y=3 x=3 and y=2 x=4 and y=1 How to figure AND ... A: Ok, the only thing I can think of is that your daughter is doing graphing and these are points on a ... | |
| calculation | 8/23/2008 |
| Q: I read on a website that tundras comprise 1/7 of the earth's surface. I assumed this to mean 1/7 of ... A: Think about an easier example. Suppose 2/3 of the Earth's surface is land and 1/3 of the Earth's ... | |
| algebra | 8/22/2008 |
| Q: D/2 + F/4 = 6 ANSWER: What do you need to do? Solve for D? Solve for F? You can't solve for 2 ... A: D/2 + F/4 = 6 multiply everything by 4 (the lowest common factor of 2 and 4 so you can get rid of ... | |
| ALGEBRA | 8/22/2008 |
| Q: 5/2 * N = 98 - N ANSWER: 5/2 * N = 98 - N add n to both sides 5n/2 + n = 98 multiply everything ... A: I explained what I did at each step (after the eq) 5/2 * n is the same as 5/2 * n/1, which equals ... | |
| Math | 8/21/2008 |
| Q: Write the greatest common factor for each set of numbers 1)6,15 2)7,35 3)6,8,12 4)16,24 5)21,56 A: All they want to know if what is the largest number that goes into each number evenly. 1) since the ... | |
| how? | 8/20/2008 |
| Q: please teach me how to divide i don't know how to... i need reply ASAP A: I'm not sure how much help I can be without being able to draw a long division sign, but I'll try. ... | |
| equivalent decimals | 8/15/2008 |
| Q: What is an equivalent decimal for 5.3 0.034 0.1230 and 9.030 A: I'm not sure what the question is. Do you have decimals to choose from? Equivalent to what? 5.3 ... | |
| percentages | 8/13/2008 |
| Q: A ball dropped from a certain height rises after bouncing to 30 % of its original height. After ... A: Let x equal the height the ball was dropped from. So, if the ball rises 30% and the ball rises 2.5 ... | |
| Maths and Small Business | 8/13/2008 |
| Q: Juliet and Damien are equal partners in a fruit and vegetable business and have noticed that their ... A: I can't accurately post a table in this space, so I'll try and explain how to do the problem. ... | |
| maths | 8/11/2008 |
| Q: A car was bought for $16000. Each year the car depreciates by 15% of its value at the beginning of ... A: Each year the car depreciates by 15% of its value at the beginning of the year. Find the value of ... | |
| Algebra Review | 8/11/2008 |
| Q: We have homework that is a review before the school year starts and I do not remember how to solve ... A: 2(M-2)>4-3(1-M) Do the multiplication 2M-4> 4-3+3m combine like terms 2m-4> 1+3m add 4 to both ... | |
| numbers and operations | 8/5/2008 |
| Q: 1.Which one of the following numbers is all prime numbers? A. 2,3,5,9 B. 3,11,23,31 C. 2,5,15,19 ... A: A prime number is a number where the only factors are 1 and the number itself. That is, it can't ... | |
| 4th grade math made fun? | 8/4/2008 |
| Q: Do you have any FUN tips to help a (soon-to-be)4th grader with multipication tables? We have tried ... A: Sorry, I really don't have any other suggestions than to do what you're doing (ie, make it real). ... | |
Basic Math
Answers by Expert:
Lynn Houston
Top Expert on this page
Expertise
I can answer questions in basic algebra and any grade school math.
Experience
Love math, currently helping my nephew get through Intermediate Algebra.
Education/Credentials
I majored in Math Ed in college (but decided not to teach), so have over 40 credits of math.
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