suppose a car has a wheel with a radius of 15 inches. How many revolutions must the wheel make to cover a distance of 10 miles?
First you have to figure out what distance a wheel will cover in one revolution. That means we calculate the circumference of the wheel.
Therefore, the circumference is approximately 94.2 inches, which is 7.85 feet.
There are 52,800 feet in 10 miles. Therefore, there are 52800/7.85 = 6726 revolutions.