SOLUTION: you buy a unicycle which has a wheel with a diameter of 25 inches. as you pedal the unicycle, the wheel turns at a rate of 200 rotations every 5 minutes. how many feet do you go on

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Question 390343: you buy a unicycle which has a wheel with a diameter of 25 inches. as you pedal the unicycle, the wheel turns at a rate of 200 rotations every 5 minutes. how many feet do you go on your unicycle after a half an hour?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let The circumference = C
Let the radius = r
C+=+2%2Api%2Ar
C+=+25%2Api
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given:
200%2F5 rotations/min
%28200%2F5%29+%2A%28+60%2F1%29 rotations/min x min/hr
2400 rotations/hr
2400 rotations/hr x 25%2Api in/rotations = 188495.56 in/hr
188495.56 in/hr x .5 hr = 94247.78 in in 1/2 hr
94247.78%2F12 in x ft/in = 7853.98 ft