Question

A tire on Sal's car makes 13 revolutions per second while traveling down the freeway. Sal's tires are 2 ft in diameter, and there are 5,280 feet in 1 mile. How far does Sal drive in 1 hour? Round the answer to the nearest mile.

A. 28 miles
B. 56 miles
C. 60 miles
D. 111 miles

Answer 1

A tire on Sal's car makes 13 revolutions per second while traveling down the freeway. [ Sal's tires are 2 ft in diameter, and there are 5,280 feet in 1 mile. Perimeter of the tire is 2 x pi x 1 = 6.28 feet. 13 x 6.28 = 81.64 feet per second 81.64 x 3600 = 293,904 feet per hour = 55.66 miles Sal travels 56 miles in an hour. ]

Answer 2

thanks dude really helpful :)

Answer 3

your welcome