# Algebra 2

posted by Ray

would some one please check these for me

1. divide x^2-36y^2 over 5x^2+30y divide (x^2-6xy)

A: x+6y over (5x)(x^2+6y)

2x 0ver x^2+15x+54 + 4over x+6

A: 6 over x+9

3. solve: (9 over x-5) -1= 8 over x+5
A: -10 and 11

This one I am having problems with a lot

4. Simplify 6/8 over 2/18
this is what I did would you please see if I did this right

6/8
over
2/18

6/8
over
1/9

9*6/8
9+3/4
9*4/4+3/4
36/4+3/4
39/4

5. Subtract 7 over y-3 -1 over y+1

A: is 2(3y+5) over (y-3)(y+1)

6. What values for x must be excluded in the following fraction?

x+2 over x^2-9x+14

A: 2 and 7

7. Solve. x over 3 - x over 4 =4

A: x=48

8.Solve. 7 over x-9 + 4 = 3 over x-9

A: 8 and 9

9.solve x+1 over 18 = 1 over 3

A: 5

10.If one-half a number is subtracted from five-sixths of the number, the difference is 6. Find the number.

A: 5/6n - 1/2n=6
n= 18

I checked just this one since you were having so much trouble with it. See below.
4. Simplify 6/8 over 2/18
this is what I did would you please see if I did this right

6/8
over
2/18

6/8
over
1/9

9*6/8 OK to here
9+3/4 You changed the * sign to + sign. Should be 9*3/4 = 27/4
9*4/4+3/4
36/4+3/4
39/4
I would have done it this way.
(6/8)/(2/18) =
(6/8)*(18/2) =
(3/4)*(9) = 27/4

## Similar Questions

1. ### math

can someone check this for me 11)Subtract 5/6 -3/5 My answer: .23 12)Add 1/3 + 1/5 + 1/10 My answer:.63 13) Divide .write each result in simplest form: 8/9 (divided by) 11/15 My answer: 1 and 1/20 5/6-3/5 is like saying: 25/30-18/30 …
2. ### math

what is 84 over 100 in simplest form? If i had a calculater i could help you but i can't do it on paper hit me up this is shawn and help me with my problem I don't know what you call simplest form?

1.Write 4x4x4x4x4 as a power of 4. Answer: 4^5 2. Evaluate. 72 divide 8-9 divide 3 Answer: 0 3. Give the place value for the indicated digit 8 in the number 138,350 Answer: Thousands 4. Fencing a rectangular field that measures 37 …
4. ### math,correction

Problem #1 subtract. Express your answer in simplest form (3x)/(18) minus (x)/(18) MY steps: (3x-x)/(18) = (2x)/(18) and answer: (2x)/(18) Problem #18 write in simplest form. (3x^5)/(15x^12) My steps: (3)/(15) = .60 x^5-12 = x^-7 so …
5. ### Algebra

1. (2x-6)/(21) divided by (5x-15)/(12) 2. Solve (x)/(x-9)-4=(9)/(x-9)..I got -6, is that correct?
6. ### algebra 2

Would some one look at these problems and see if I got them right Thanks Just let me if they are wrong so I can go back over them 1.Write in simplest form 48/56 A. 6/7 2.Multiply 8x^3/5 *10/x^3 A. 16/x^4 3.Divide 4/x^7 / 12/x^3 A. …