Mathematics - 14 September 2006

4.5x+12.5y=4500

2006-09-14 15:01:36 · 5 answers · asked by nisha10mabry 3

for example: (3/4)/(1/4)? the numbers in () are the fractions and i have to divide them! how do i do it? do i change 1/4 to 4/1 and divide or does it stay the same? please help and explain!

2006-09-14 14:51:12 · 4 answers · asked by livin*it*to*the*X-TREME 1

2006-09-14 14:44:03 · 2 answers · asked by dillon_throckmorton 2

How many kilograms are in a pound?

2006-09-14 14:36:32 · 6 answers · asked by Claire 1

Sorry that the title's so long. Anybody here know whether its true or false tho?

2006-09-14 14:33:10 · 6 answers · asked by Anonymous

A woman has a ladder that is 13 feet long. If she sets the base of the ladder on level ground 5 feet from the side of a house, how many feet above the ground will the top of the ladder be when it rests against the house?

2006-09-14 14:27:25 · 14 answers · asked by ? 2

how do i rationalize the numerator if the problem is as such (

3. (sqroot 6 - 3 ) / 4
4. (sqroot 5 + sqroot 6 ) / 3

thanks, much appreciation for the help on the other post i had. seem to understand it a little better now. but for the numerator i thought that if you already had the square root sign on top of the fraction then its already rationalize or isn't it?.

thanks again..

2006-09-14 14:25:39 · 3 answers · asked by Jimmy 1

How many different outfits consisting of a hat, a pair of slacks, and a sweater can be made from 2 hats, 3 pairs of slacks, and 4 sweaters?

2006-09-14 14:24:31 · 4 answers · asked by ? 2

2006-09-14 14:23:20 · 2 answers · asked by tyeserhule 1

2006-09-14 14:20:05 · 22 answers · asked by blingding 5

I had an aluminum slug that I measured the mass of as 8.669g.

The length was 2.8cm

The radius was .950 cm

The volume (using a volumetric cylinder) was 3.5cm^3^. We are supposed to do a calculated volume using (pi*r^2^*h) also..but when I do it with the formula, it doesn't come out the same both ways. I think I'm following everything, but it's just not coming close to being equal. Am I doing something wrong, or did we (more than likely) not measure something right?

2006-09-14 14:17:33 · 5 answers · asked by buttercup1137 2

okay so can you tell me if this is right, if not please show me the error.
(6d+3a)-(4d-7a)
6d+3a+-4d+-7a
=2d+-4a

And could you help me with these...
#1. (4a-3b-c)-(4b-7)+(9a+5)

#2. (7y-3)+(6y+2)-(3y-7)

2006-09-14 14:11:25 · 12 answers · asked by Anonymous

2006-09-14 14:04:38 · 3 answers · asked by paulie2050 1

It's been a while since I was in the third grade.. this is SOO embarrassing.. I never thought I would see the day I didn't understand third grade math, but I'm trying to help a friend's son and we don't understand the question.. It says explain how the #7 can have different values.... If we knew what they wanted, I could explain it to him so he could get the answer.. Anybody know?

2006-09-14 13:59:35 · 4 answers · asked by Jennifer F 6

y+7=12
y-7=12
x/2=16
x/5=4
x/3=7
x/12=2
2x=16
4x=20
5x=55
6x=12
5x=20
x-5=12
x/5=12
x-9=12

2006-09-14 13:53:35 · 20 answers · asked by karla g 1

a. $ 518.57
b. $ 581.57
C. $ 681.57
d. $ 618.57

2006-09-14 13:47:19 · 7 answers · asked by Mary C 1

Could someone please guide me through factoring the following:

x^3-6x^2+11x-6

The answer should come out to (x-1)(x-2)(x-3)
Thank you!

2006-09-14 13:44:49 · 11 answers · asked by Anonymous

a. $ 140.49
B. 104.94
c. 104.49
d. 150.00

2006-09-14 13:44:02 · 4 answers · asked by Mary C 1

2006-09-14 13:43:40 · 6 answers · asked by britiani j 1

2006-09-14 13:41:09 · 11 answers · asked by Mary C 1

2006-09-14 13:35:22 · 6 answers · asked by Anonymous

how do i rationalize the numerator or denominator if the problem is as such (could you also please explain conjugate also like on problem 2. how do you get the conjugate if its on the left side of the subtraction sign?):

1. 3 / ( sqroot 5 + sqroot 6 )
2. 5 / ( sqroot 14 - 2 )
3. (sqroot 6 - 3 ) / 4
4. (sqroot 5 + sqroot 6 ) / 3

thanks, much appreciation.

2006-09-14 13:23:52 · 6 answers · asked by Jimmy 1

a. 140.49
b. 104.94
c. 104.49
d. 150.00

2006-09-14 13:23:32 · 12 answers · asked by rhinesstone 1

Surveyors and photographers use tripods for support.
Why does a three legged support work better than a four legged one? Why would a four legged support still rock even if the gorund is leveled? Thanks!

2006-09-14 13:19:16 · 5 answers · asked by that's funny 3

What is the minimal cost (It's not 12 dollars)

2006-09-14 13:19:03 · 10 answers · asked by tom 2

2006-09-14 13:15:35 · 3 answers · asked by okiedokie 2

2006-09-14 13:12:50 · 11 answers · asked by Boulos 1

2006-09-14 13:06:01 · 2 answers · asked by t 1

How do I calculate the thickness of a piece of copper foil with a mass of 0.0112 pound and a density of 8.92 g/mL if the lenght of the piece of copper is 0.024 m an the width is 2.4 x 10^4 um?

2006-09-14 12:58:43 · 1 answers · asked by Anonymous

2006-09-14 12:56:53 · 9 answers · asked by Anonymous