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April 19, 2014

Homework Help: Math

Branches of Math

Recent Math Questions

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math
change per year is (8750-23500)/8 = -1843.75 so, what's -1843.75/23500?
Friday, March 28, 2014 at 12:17am

3rd grade math
if there were x pieces to start, x/5 = 2 x = 10
Friday, March 28, 2014 at 12:15am

Math
no, 26x^2 ≠ x√26 Whatever made you think so. let x = 4 26(4^2) = 26*16 = 416 xV26 = 4√26 = appr 20.4 is 416 = 20.4 ???? However, you could write 26x^ as (x√26)^2
Friday, March 28, 2014 at 12:15am

Math
6 bags uses 5 pounds 12 bags uses 10 pounds, or 5 large bags.
Friday, March 28, 2014 at 12:14am

Math
treat it as two ordered pairs (t, c) where t is temperature and c is consumption so we have (90,220) and (76, 178) slope = (220-178)(/(90-76) = 42/14 = 3 so: c-220 = 3(t-90) c = 3t - 270+220 c = 3t - 50 check: if t = 90, c = 270-50 = 220 if t = 76, c = 228 - 50 = 178
Friday, March 28, 2014 at 12:11am

Math
Chads buys peanuts in 2 pound bags. How many 2 pound bags of peanut should chad buy so that he can fill the 5/6 pound bags without having any peanuts left over
Friday, March 28, 2014 at 12:11am

3rd grade math
suppose there are 2 pieces of the cake left over but you dont know how many pieces there were in the whole cake. explain how you could find the number of pieces in the whole cake if taylor told you that 1/5 of the cake was left.
Friday, March 28, 2014 at 12:06am

math
when u get this answer let me know! i am stuck on the same one!!! but i think that the question should read cut a cake into 8 pieces...
Friday, March 28, 2014 at 12:05am

math
avg rate of change = (23500 - 8750)/(8 = ...
Friday, March 28, 2014 at 12:03am

Math
I assume you pick a card, then throw the die primes from 1-10 : 2,3,5,7 , so 4 of them primes on a die: 2 3 5, so 3 of them prob(2 primes) = (4/10)(3/6) = 1/5 prob(not 2 primes) = 4/5 odds in favour of getting two primes = (1/5) : (4/5 = 1 : 4
Thursday, March 27, 2014 at 11:59pm

3rd grade math
suppose she cut the cake into 8 equal size pieces and 6 people at all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. You can show your work in a drawing.
Thursday, March 27, 2014 at 11:56pm

2nd question - math help!!
(x+y)^2-x-y = (x+y)^2 - (x+y) = (x+y)(x + y - 1)
Thursday, March 27, 2014 at 11:55pm

math help!!
To make it easier to see, let 2x^2 - x = a so you have 2a^2 - 3a - 9 = (a-3)(2a+3) put the original back in = (2x^2 - x - 3)(4x^2 - 2x + 3) = (x + 1)(2x - 3)(4x^2 - 2x + 3)
Thursday, March 27, 2014 at 11:53pm

math
vehicles lose value over time. A car is purchased for $23 500, but it is worth only $8750 after eight years. What is the average annual rate of change in the value of the car, as a percent?
Thursday, March 27, 2014 at 11:14pm

Math
a trainer for a professional football team keeps track of the amount of water players consume throughout practice. the trainer observes that the amount of water consumed is a linear function of the temperature on a given day. the trainer finds that when its 90 degrees the ...
Thursday, March 27, 2014 at 11:11pm

math
vehicles lose value over time. A car is purchased for $23 500, but it is worth only $8750 after eight years. What is the average annual rate of change in the value of the car, as a percent?
Thursday, March 27, 2014 at 11:09pm

Math
You're welcome.
Thursday, March 27, 2014 at 10:59pm

math
37.5 * 0.08 = $3.00 tax (37.5 + 3.00) * 1.18 = _______ total
Thursday, March 27, 2014 at 10:58pm

math
You're right.
Thursday, March 27, 2014 at 10:53pm

math
A group of friends went to lunch. The bill, before sales tax and tip, was $37.50 . A sales tax of 8% was added. The group then tipped 18% on the amount after the sales tax was added. What was the amount, in dollars, of the sales tax? What was the total amount the group paid, ...
Thursday, March 27, 2014 at 10:50pm

Math
THANK YOU!!
Thursday, March 27, 2014 at 10:50pm

math help!! ANYONE?!?!
someone please help!!!!
Thursday, March 27, 2014 at 10:49pm

math
I forgot to put the answer which is no
Thursday, March 27, 2014 at 10:44pm

math
can you produce a 2-digit whole number by multiplying two-digit whole numbers?
Thursday, March 27, 2014 at 10:42pm

Math
Can 26x^2 be written as x*sqrt26?
Thursday, March 27, 2014 at 10:42pm

Math
I was wondering if you can help me with math real quickly. I just cant figure this out. For the first question I have to find the surface area for the given cylinder. I have to use 3.14 and round to the nearest whole number. The radius is 6ft and the height is 20 ft. A. 180 ...
Thursday, March 27, 2014 at 10:37pm

Math
Mr. Garcia pays $834 for some model cars and model planes. Each model car cost $52. and each model plane cost $14. less than each model car. Mr. Garcia buys 3 more planes than cars. How many model planes does he buy?
Thursday, March 27, 2014 at 10:29pm

math help me pleasee!!
help mee with the two questions, i don't get it and i have a test tomorrow!
Thursday, March 27, 2014 at 10:27pm

math help!!
okay thankyou so much!! :-)
Thursday, March 27, 2014 at 10:25pm

Math
5% = 5/100 = 1/20
Thursday, March 27, 2014 at 10:23pm

Math
2 1/2 hours = 150 minutes (150/3) * 2 = ?
Thursday, March 27, 2014 at 10:21pm

Math
What is 7 sqrt 8 - 2 sqrt 8?
Thursday, March 27, 2014 at 10:20pm

MATH HELP
.................| .........(3,2)\..|../ ...............\.|./(s,1) ................\|/ -----------------|------------------- ................/|\ .............../.|.\ .................| .................| In the accompanying figure, the slope of line k is t and the slpe of line...
Thursday, March 27, 2014 at 10:16pm

Math
There are 120 students trying out for the play. Only 5% of those trying out will have a speaking part. Write this percent as a fraction in its lowest terms.
Thursday, March 27, 2014 at 10:11pm

math help!!
i also need help with this question factor: (x+y)^2-x-y
Thursday, March 27, 2014 at 10:10pm

Math
Reggie is a long distance runner. His daily 2-1/2 hour practice is divided evenly into three areas: warm-ups, running, and cool down. How many minutes total does Reggie spend warming up and cooling down each day at practice?
Thursday, March 27, 2014 at 10:09pm

Math
You have cards numbered 1-10 and a number cube what are the odds of getting two prime numbers? The book says 1\5 but how do they get it.
Thursday, March 27, 2014 at 10:08pm

geometry
| (3,2)\ | / \ | /(s,1) \|/ -----------------|------------------- /|\ / | \ | | In the accompanying figure, the slope of line k is t and the slpe of line m is negative t. What is the value of s? (the lines are perpendicular) (sorry for the ascii graph ^_^) (I have a test ...
Thursday, March 27, 2014 at 10:07pm

math help!!
Factor: 2(2x^2-x)^2-3(2x^2-x)-9
Thursday, March 27, 2014 at 10:06pm

math
Mrs. Jones and Mr. Graham had the same amount of money at first. After Mrs. Jones bought a computer that cost $2,055, she had 1/4 as much money as Mr. Graham. How much money did Mr. Graham have?
Thursday, March 27, 2014 at 9:54pm

Math
x + 15 + 2x + 27 = 180 3 x = 138 x = 46
Thursday, March 27, 2014 at 9:38pm

math help!!
[ (x^2+5x) - 6 ] [(x^2+5x) + 6 ] (x^2 + 5 x - 6) (x^2 + 5x + 6) now if the back of your book says (x^2 + 5 x + 6)( x^2 + 5 x - 6) That is the SAME
Thursday, March 27, 2014 at 9:34pm

math help!!
You got the second one, just reversed x y = y x !
Thursday, March 27, 2014 at 9:31pm

math help
That is exactly what we got x y = y x the order is just reversed
Thursday, March 27, 2014 at 9:29pm

Math
If x+15 and 2x+27 represent the number of degrees in measures of two consecutive angles of a parallelogram, find the value of x.
Thursday, March 27, 2014 at 9:27pm

math
you could do a square with the base as 4 then the height as a 11 then add another figure which has idk because I had that problem
Thursday, March 27, 2014 at 9:26pm

math-still confused
the answers at the back of the textbook say that the answer is (a-b+c-d)(a-b-c+d) i don't get it :$
Thursday, March 27, 2014 at 9:22pm

math help
LOL, no need for wolfram !
Thursday, March 27, 2014 at 9:19pm

math help
remember - -d = + d
Thursday, March 27, 2014 at 9:19pm

math help!!
factor: (x^2+5x)^2 - 36 and (a-b)^2 - (c-d)^2 show the steps pleasee!
Thursday, March 27, 2014 at 9:18pm

math help
Wolfram Alpha ^_^
Thursday, March 27, 2014 at 9:17pm

math help
[ (a-b) - (c-d) ] - [ (a-b) + (c-d) ] [ a - b - c + d ] [ a - b + c - d ]
Thursday, March 27, 2014 at 9:17pm

Math
This doesn't make sense. Please proofread and repost.
Thursday, March 27, 2014 at 9:15pm

math help!
how did you get that??
Thursday, March 27, 2014 at 9:14pm

Math
36 / 2.25 = 16 bows 3*2.25 = 6.75 feet will not be used
Thursday, March 27, 2014 at 9:14pm

Math
cosine law .... 5.4^2 = 6.2^2 + 3.6^2 - 2(6.2)(3.6)cosR cosR = 22.24/44.64 = .4982.. R = 60.1°
Thursday, March 27, 2014 at 9:12pm

Math
If an orange is twice as many as a pear. How many pears are there?
Thursday, March 27, 2014 at 9:12pm

math help
(a - b - c + d)(a- b + c - D)
Thursday, March 27, 2014 at 9:11pm

Math
direct application of the sine law: x/sin41 = 96/sin71 x = 96sin41/sin71 = ....
Thursday, March 27, 2014 at 9:06pm

math help
factor: (a-b)^2 - (c-d)^2
Thursday, March 27, 2014 at 9:06pm

Math
Fay is making 13 bows to sell. She has 36 feet of ribbon. If each bow requires 2 1/4 feet of ribbon, how much ribbon will not b used
Thursday, March 27, 2014 at 9:06pm

math
Multiply: (3/4) * 20 = 60/4 = 15
Thursday, March 27, 2014 at 8:44pm

math
jared bought a package of pens containing 20 pens. If 3/4 of the pens had black ink, how do you determine the number of pens with black ink?
Thursday, March 27, 2014 at 8:41pm

math help ASAP!!
m(2m+3n)(m-5n)
Thursday, March 27, 2014 at 8:36pm

math
450 divided by 14 is 32.14285714285714 or 32 when rounded. It can also be rounded to any other place, depending on what they want.
Thursday, March 27, 2014 at 8:36pm

math
thankyou!
Thursday, March 27, 2014 at 8:31pm

Math
in triangle PQR, PQ=5.4, QR=3.6, and PR=6.2. to the nearest tenth, what is m<R?
Thursday, March 27, 2014 at 8:31pm

math
450 divide 14?
Thursday, March 27, 2014 at 8:31pm

math
ohh ok thanks! :)
Thursday, March 27, 2014 at 8:31pm

math help ASAP!!
factor: 2m^3 - 7m^2n - 15mn^2
Thursday, March 27, 2014 at 8:29pm

Math
In triangle ABC, m<A=71, m<C=41, and BC=96. To the nearest tenth, what is AB?
Thursday, March 27, 2014 at 8:28pm

math
Yes !!! You got it. even the -1 * -1 = + 1 part
Thursday, March 27, 2014 at 8:28pm

math
You're welcome.
Thursday, March 27, 2014 at 8:27pm

math
Multiply: 0.04 * 350 = ?
Thursday, March 27, 2014 at 8:26pm

Math
7 14 21 28 35 42 49 56 63 70
Thursday, March 27, 2014 at 8:25pm

math
P = (Po*r*t)/(1-(1+r)^-t) Po = Initial principal = $199,000 r = (7.01%/12)/100% = 0.00584 = Monthly % rate expressed as a decimal. t = 25yrs * 12mo/yr. = 300 Months. Plug the above values into the given Eq. and get: P = $422,328.10 Int.(Tot.) = P-Po = $223,328.10 Monthly ...
Thursday, March 27, 2014 at 8:23pm

math
What is 4% of 350??
Thursday, March 27, 2014 at 8:22pm

Math
Write the multiples of 7 through 70:
Thursday, March 27, 2014 at 8:22pm

math
sorry about the caps, was doing tax returns with caps lock on
Thursday, March 27, 2014 at 8:21pm

math
yOU HAVE [X - [Y-Z) ] THAT IS [ X - Y - NEGATIVE Z ] - A NEGATIVE IS POSITIVE [ X -Y PLUS Z ]
Thursday, March 27, 2014 at 8:20pm

math
I got 14%. Is this correct, Ms. Sue?
Thursday, March 27, 2014 at 8:14pm

math check my answer!
no the answer is -5(2x-y)(2x+y) ^is that right??
Thursday, March 27, 2014 at 8:10pm

math
is it -20x^2 + 5y^2 = -5(4x^2-y^2)
Thursday, March 27, 2014 at 8:08pm

math
factor: -20x^2 + 5y^2
Thursday, March 27, 2014 at 8:07pm

5th Grade Math
No. Since he played half as many games, I'd predict he'd win half as many as he did for the first round.
Thursday, March 27, 2014 at 8:05pm

math
Sorry, Ms. Sue, I did not read it carefully.
Thursday, March 27, 2014 at 8:04pm

math
Thank you so much ! :)
Thursday, March 27, 2014 at 8:03pm

math
Go with Ms. Sue, I was typing, and didn't see hers. Just ignore my answer.
Thursday, March 27, 2014 at 8:03pm

math
No, Brady. Your answer is wrong.
Thursday, March 27, 2014 at 8:03pm

math
25 times 0.92 is 23 So, 0.92 is the answer.
Thursday, March 27, 2014 at 8:01pm

math
Do this problem the same way I showed you for the last problem.
Thursday, March 27, 2014 at 8:01pm

math
23/25 = 0.92 = 92%
Thursday, March 27, 2014 at 7:59pm

math
They could be either 5 by 5 or 15 by 15.
Thursday, March 27, 2014 at 7:58pm

math
What percent of 600 is 84?
Thursday, March 27, 2014 at 7:58pm

math
What percent of 25 is 23?
Thursday, March 27, 2014 at 7:57pm

5th Grade Math
8 games
Thursday, March 27, 2014 at 7:55pm

math
I have a flat piece of plywood that measures 45 inches in width and 75 inches in length. I want to cut the board into identical square pieces with the integer side lengths and use the entire piece of wood. What are the dimensions (width & length) of each identical piece? ...
Thursday, March 27, 2014 at 7:54pm

5th Grade Math
Since he won 12 out of 20 in his first games, how many games do you think he'll win in the next 10 games?
Thursday, March 27, 2014 at 7:43pm

5th Grade Math
Keith played some games of chess at a tournament. He recorded the results of the games on the table shown. Game Results: Number of Games TIES 4 WINS 12 Losses 4 If Keith plays 10 more games, how many of the 10 games is he likely to win? A. 6 games B. 8 games C. 4 games D. 2 games
Thursday, March 27, 2014 at 7:36pm

5th grade math
20/100 = 1/5
Thursday, March 27, 2014 at 7:36pm

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