SOLUTION: By himself, Tim can complete his paper route in 100 minutes. With the help of Sue it takes 80 minutes. How many minutes would it take Sue to do the route by herself?

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Question 460434: By himself, Tim can complete his paper route in 100 minutes. With the help of Sue it takes 80 minutes. How many minutes would it take Sue to do the route by herself?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
80/100+80/t=1
4/5=80/s=1
80/s=1/5
400=s