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Emma runs 1 1/2 mi in each 1/5 of an hour. Find how many miles she runs per hour.

1 Answer

5 votes

Distance = 1 1/2 miles = (1x2+1) /2 = 3/2 miles

Time = 1/5 hour

Speed rate = Distance / time

Replacing:


\text{speed rate = }((3)/(2))/((1)/(5))

To divide we can multiply by the inverse of the second fraction:

Speed rate = 3/2 x 5/1 = 15/2 miles per hour

User Joel Mitchell
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