SOLUTION: if the radius of a wheel is f feet, how many revolutions does the wheel make per mile? (1 mile = 5,280feet)

Question 478890: if the radius of a wheel is f feet, how many revolutions does the wheel make per mile? (1 mile = 5,280feet)
Found 2 solutions by rfer, Alan3354:
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!

Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
if the radius of a wheel is f feet, how many revolutions does the wheel make per mile? (1 mile = 5,280feet)
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It moves the length of its circumference each revolution
C = 2pi*r = 2pi*f
revs = 5280/(2pi*f)
revs = 2640/(pi*f)

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