SOLUTION: If John can shingle a roof alone in 7 hours and Stuart can shingle a roof alone in 3 hours, how long will it take to shingle the roof if John and Stuart work together? Round your a
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Question 737434: If John can shingle a roof alone in 7 hours and Stuart can shingle a roof alone in 3 hours, how long will it take to shingle the roof if John and Stuart work together? Round your answer to the nearest hundredth.
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
1/3+1/7=1/x
x=21/10
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