SOLUTION: Randy Howe can paint his house in 9 hours. His sister Candy can paint the house in 15 hours. How many hours will it take them to paint the house if they work together?
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Question 296951: Randy Howe can paint his house in 9 hours. His sister Candy can paint the house in 15 hours. How many hours will it take them to paint the house if they work together?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
x/9+x/15=1
5x/45+3x/45=
8x/45=1
8x=45
x=45/8=5 5/8=5.625 hrs
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