| Subject | Date Asked |
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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. ...
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| 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 - ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 = ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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?, ...
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| 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) - ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| '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 ...
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| 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 = ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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) ...
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| 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, ...
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| 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 ...
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| 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) ...
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| 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) ...
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| 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 ...
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| 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 = ...
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| 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. ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ----- ----- - ...
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| 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 - - ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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, ...
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| 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 = ...
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| 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, ...
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| 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 = ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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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: Treat it as an = sign and do the same thing (isolate the variable by "undoing" everything that has ...
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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: No. What you do to one side of the equality, you have to do to the other. So, when your teacher ...
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| 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.) ...
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| 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 ...
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| 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 > ...
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| 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 + ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 - ...
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| 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, ...
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| 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 ) ...
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| 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 ...
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| 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 = ...
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| 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) ...
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| 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 ...
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| 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 ...
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| 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} ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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: ...
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| 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 ...
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| 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 ...
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| 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, ...
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| 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 ...
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| 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). ...
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| 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, ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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? ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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. ...
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| 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 ...
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| 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 ...
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| 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 ...
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| 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). ...
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