SOLUTION: It takes Nate five hours to paint a wall, and it takes Jill seven hours to paint the same wall. About how many hours will it will take if Nate and Jill work together to paint the w
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Question 1061740: It takes Nate five hours to paint a wall, and it takes Jill seven hours to paint the same wall. About how many hours will it will take if Nate and Jill work together to paint the wall? Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! It takes Nate five hours to paint a wall, and it takes Jill seven hours to paint the same wall. About how many hours will it will take if Nate and Jill work together to paint the wall?
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rate + rate = together rate
1/5 + 1/7 = 1/x
7x + 5x = 5*7
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12x = 35
x = 2.92 hrs = 2 hr 55 minutes (time to do the job together)
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Cheers,
Stan H.
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