SOLUTION: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?       Log On


   

Question 404458: If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to paint the house together?
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
x%281%2F4+%2B+1%2F6%29+=+1
<==> 5x%2F12+=+1
==> x = 2.4 hours, working together.