SOLUTION: A cyclist bikes x distance at 10 miles per hour and returns
over the same path at 8 miles per hour. What is the
cyclist's average rate for the round trip in miles per hour?
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over the same path at 8 miles per hour. What is the
cyclist's average rate for the round trip in miles per hour?
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Question 613517: A cyclist bikes x distance at 10 miles per hour and returns
over the same path at 8 miles per hour. What is the
cyclist's average rate for the round trip in miles per hour? Answer by Alan3354(69443) (Show Source):
You can put this solution on YOUR website! A cyclist bikes x distance at 10 miles per hour and returns
over the same path at 8 miles per hour. What is the
cyclist's average rate for the round trip in miles per hour?
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For a round trip,
Avg = 2*r1*r2/(r1 + r2) (I can prove that, if necessary)
= 2*10*8/(10+8) = 160/18
= 80/9 mi/hr
=~ 8.888... mi/hr
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The distance is not relevant
