The diameter of each wheel of a bicycle is 28 inches. If you are traveling at a

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speed of 30 miles per hour on ? this bicycle, through how many revolutions per minute are the wheels turning?


I thought i knew how to solve this, but i keep getting it wrong. please help!
 
63360 Inches In 1mile

63360in x 30 =1900800in


1900800divide by28 = 67885.7142857

So the bikes wheal has 67885.7142857 revolutions per hour
 
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