SOLUTION: How many revolutions will a car wheel of diameter 60cm make as the car travels a distnace of 4km?

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Question 238658: How many revolutions will a car wheel of diameter 60cm make as the car travels a distnace of 4km?
Found 2 solutions by ankor@dixie-net.com, Alan3354:
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
How many revolutions will a car wheel of diameter 60cm make as the car travels a distnace of 4km?
:
Distance in cm, divide by circumference
%284+%2A+1000+%2A+100%29%2F%28pi%2A60%29 = 2,122 revolutions

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
How many revolutions will a car wheel of diameter 60cm make as the car travels a distnace of 4km?
----------------
The circumference is pi*d. It moves that far per revolution.
4 km = 400000 cm
revs = 400000/(60*pi)
revs = 20000/3pi
revs =~ 2122