SOLUTION: I have a word problem. The distance from Philadelphia and Sea Isla City is 100 miles. A car was driven this distance using tires with a radius of 14 inches. How many revolutions

Question 152934: I have a word problem.
The distance from Philadelphia and Sea Isla City is 100 miles. A car was driven this distance using tires with a radius of 14 inches. How many revolutions of each tire occurred on the trip?
I would like to learn how to break down the equation if I may.
Many thanks!!
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
when a disc (tire) is rolling, the disc travels a distance of one circumference for each revolution

the circumference is 2*pi*r, in this case 28*pi inches

there are 12 inches in a foot and 5280 feet in a mile, so the trip distance (in inches) is 100*5280*12

so the number of revolutions is (100*5280*12)/(28*pi)
RELATED QUESTIONS
The distance from Philadelphia to Sea Isle City is 100 mi. A car was driven this... (answered by stanbon)

The distance from Philadelphia to Sea Isle City is 100 mi. A car was driven this distance (answered by josmiceli)

Could someone help me with this problem? The distance from Philadelphia to Sea... (answered by Nate)

Can someone help me with this problem? The distance from Philadelphia to Sea Isle... (answered by fractalier)

the distance from philadelphia to sea isle cit is 100 miles, a car was driven this... (answered by doukungfoo)

The distance from Philadelphia to Sea Isle City is 100 miles. The tires on the car have... (answered by psbhowmick)

The car drove 100 km (kilometers) on a winding road to a city 80 km away. What is the... (answered by Alan3354)

Starting from city A, a car drives 250 miles east to city b, then 300 miles north to city (answered by mananth)

By air, the distance from city A to city B is 30063006 miles less than the... (answered by ikleyn)