Sarah roller skates 18.5 km in 3 1/12 hours what is average speed in miles per hour?

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asked Jun 15, 2018 117k views

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Rens Groenveld · Answer 1 · 2018-06-19T18:21:12+0000

Convert 18.5 km to miles. 1 km = 0.6214 miles. Then 18.5 km = (0.6214 X 18.5)miles = 11.5 miles. Speed = distance / time. Then:

s = 11.5 / 3.5 = 3.286 miles / hr

Sarah roller skates 18.5 km in 3 1/12 hours what is average speed in miles per hour?

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