SOLUTION: dave ran 2 km at 8 km per hour.Andy ran 2km at 10 km per hour.It took dave ___ more minutes than andy to run the 2 km ?
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Question 684724: dave ran 2 km at 8 km per hour.Andy ran 2km at 10 km per hour.It took dave ___ more minutes than andy to run the 2 km ?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
dave ran 2 km at 8 km per hour.Andy ran 2km at 10 km per hour.It took dave ___ more minutes than andy to run the 2 km ?
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d = r*t
t = d/r
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Find the 2 times, get the difference
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