SOLUTION: Jeremy and Ahmed are painting a wall. Working alone, Jeremy can paint 1/4 of the wall in 1 hour. Working to gether, Jeremy and Ahmed can paint the entire wall in 35 minutes. How

Algebra ->  Rational-functions -> SOLUTION: Jeremy and Ahmed are painting a wall. Working alone, Jeremy can paint 1/4 of the wall in 1 hour. Working to gether, Jeremy and Ahmed can paint the entire wall in 35 minutes. How      Log On


   

Question 441657: Jeremy and Ahmed are painting a wall. Working alone, Jeremy can paint 1/4 of the wall in 1 hour. Working to gether, Jeremy and Ahmed can paint the entire wall in 35 minutes. How long would it take Ahmed to paint he entire wall by himself?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
35%281%2F240+%2B+1%2Fx%29+=+1
==> 1%2F240+%2B+1%2Fx+=+1%2F35
==> 1%2Fx+=+1%2F35+-+1%2F240+=+41%2F1680
==> x+=+1680%2F41+=+40%2640%2F41 minutes for Ahmed to paint the entire wall by himself.