Posted by Courtney on Tuesday, August 24, 2010 at 8:22am.
5(4r3c)2(7r9c)=0 solve for r
This is all I know how to do and don't know if it's even right. Or what to do from here.
5(4r3c)2(7r9c)=0 solve for r
20r15c14r11c=0
6r26c=0

Maath  Reiny, Tuesday, August 24, 2010 at 8:41am
see the post above this, follow the same steps

Maath  Courtney, Tuesday, August 24, 2010 at 9:21am
this is the steps:
20r15c14r+18c=0
6r+3c=0
so for my final answer I got r=c/2 is that correct?

Maath  Reiny, Tuesday, August 24, 2010 at 9:33am
close ...
from your second last line
6r + 3c = 0
6r =  3c
r = c/2
btw, I am glad you caught your error in the steps of your original at the top,
where did the 11c come from?
Answer This Question
Related Questions
 Maath  Solve the equation for the indicated variable. 4x3a(10x+7a)=0 solve ...
 Maath  Solve the equation for the indicated variable. 4x3a(10x+7a)=0 solve ...
 Maath  Solve the equation for the indicated variable. 5(4r3c)2(7r9c)=0 solve...
 maath  How to do you solve this 3^x=9 graphically? What do I do. Thank you
 Geometry  9dd/5=88 c/2+11c=92 How do i solve for the variables d and c?
 Maath  Solve The Equation 3/y+2 over 7/y4
 Maath  What does it mean to solve each equation graphically? 5x+7=32
 Maath  Use the elimination method to solve each system. How do you do this? {u+...
 Algebra 2  Approximate to the nearest tenth the positive real zeroes of f(x)=x^...
 Algebra 2 (check)  I have some problems that I've answered and I need someone ...
More Related Questions