Posted by **rachel** on Tuesday, December 6, 2011 at 7:48pm.

Solve by substitution.

y=.8x+72

20x+32y=48

How do you get y? i got the x part but i can't seem to get the y part.

- algebra 1 -
**bobpursley**, Tuesday, December 6, 2011 at 7:49pm
solve this:

20x+32 (.8x+72)=48

then, you have x. Then solve y=.8x+72

- algebra 1 -
**rachel**, Tuesday, December 6, 2011 at 8:02pm
i actually wrote the second part wrong. Its supposed to be y=.8x+7.2 not 72. and when i solved it i got 10.4 for y and my x is 4.

- algebra 1 -
**rachel**, Tuesday, December 6, 2011 at 8:13pm
Is it right?

## Answer This Question

## Related Questions

- algebra - How do i use substitution to solve each system? y= 0.8x + 7.2 20x + ...
- Math - use substitution method for solving x+y=4 (x+2)^2+(y-3)^2=5 I got the ...
- Math - use substitution method for solving x+y=4 (x+2)^2+(y-3)^2=5 I got the ...
- Algebra - 2(0.5-3y) + y > (4y-0.2)8 I understand how to solve the problem, ...
- Algebra help please - Part A: Divide (16x^5y^4 + 6x^3y - 2x^2y - 24x^2y^4) by -...
- algebra :( help me!! - The table below shows the weekly earnings of two groups ...
- math... - A. Solve a-9=20 I did 20+9=29 29-9=20 a=29 Part b solve b-9>20 I ...
- Algebra-Please check - 5 - sqrt of 20x + 4 >= -3 5- 20x + 4 >= -3 5-4 - ...
- college math - in a conjecture the answer i got was 12n how would it look if it ...
- Math - Calculate the integrals by partial fractions and using the indicated ...

More Related Questions