SOLUTION: If bill can paint a house in 4 hours and joe can paint a house in 6 hours, how long would it take to paint the house together?

Question 411223: If bill can paint a house in 4 hours and joe can paint a house in 6 hours, how long would it take to paint the house together?
Found 2 solutions by unlockmath, eric.schuh:
Answer by unlockmath(1688) (Show Source): You can put this solution on YOUR website!
Hello,
Here's the formula to follow:
1/4+1/6=1/x
Now multiply by 12x to get:
3x+2x=12
Combine like terms and divide by 5 to get:
x=12/5 or 2.4 hours
Make sense?
RJ
www.math-unlock.com
Answer by eric.schuh(2) (Show Source): You can put this solution on YOUR website!
it would take 2.4hours to paint the house together
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