SOLUTION: robert can run 5 miles in 45 minutes. how long would it take robert to run 7 miles ?

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Question 864488: robert can run 5 miles in 45 minutes. how long would it take robert to run 7 miles ?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
5mi%2F45min+=+7mi%2Fx | Cross Multiplying to solve
x = 315/5 = 63min