SOLUTION: The radius of the tires on an off-road pickup truck 21 inches. The truck's tires are turning at the rate of 220 revolutions per minute. Given that 1 mile is 5280 feet, determine

Question 866658: The radius of the tires on an off-road pickup truck 21 inches. The truck's tires are turning at the rate of 220 revolutions per minute. Given that 1 mile is 5280 feet, determine the speed of the truck in miles per hour.
Found 2 solutions by josgarithmetic, lwsshak3:
Answer by josgarithmetic(39621) (Show Source): You can put this solution on YOUR website!
220 rpm means 220 circumferences per minute.
1 circumference is inches.

Check the units and you should find that the ratios are arranged to give miles per hour.
The strictly numeric part of the expression is/can be:

Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
The radius of the tires on an off-road pickup truck 21 inches. The truck's tires are turning at the rate of 220 revolutions per minute. Given that 1 mile is 5280 feet, determine the speed of the truck in miles per hour.
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