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

Algebra ->  Trigonometry-basics -> 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       Log On


   

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(39620) About Me  (Show Source):
You can put this solution on YOUR website!
220 rpm means 220 circumferences per minute.
1 circumference is 2%2Api%2A21 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:
%28220%2A2%2Api%2A21%2A60%29%2F%2812%2A5280%29

Answer by lwsshak3(11628) About Me  (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.
***