Solve the problem.
-The radius of the tires of a car is 16 inches, and they are revolving at the rate of 691 revolutions per minute. How fast is the car traveling in miles per hour?
A) $\frac { 691 } { 330 } \pi \mathrm { mph }$
B) $\frac { 691 } { 33 } \pi \mathrm { mph }$
C) $\frac { 691 } { 66 } \pi \mathrm { mph }$
D) $\frac { 2764 } { 11 } \pi \mathrm { mph }$

Question

Quizplus · Accepted Answer

To find the speed in mph, first calculate the distance traveled in one revolution: $2 \pi \times 16$ inches. Multiply by 691 revolutions per minute to get inches per minute, then convert to miles per hour: $\frac{691 \times 2 \pi \times 16}{12 \times 5280} \times 60$, which simplifies to $\frac{691}{33} \pi$ mph.

Solve the Problem 691330πmph\frac { 691 } { 330 } \pi \mathrm { mph }330691​πmph

Solve the Problem $\frac { 691 } { 330 } \pi \mathrm { mph }$