Question

The tires on your bicycle have a diameter of 9 inches. How many rotations does each tire make when you travel 300 feet. Round your answer to the nearest whole number

Answer 1

127

Explanation:

The diameter in feet is ...

(9 in)·(1 ft)/(12 in) = 9/12 ft = 0.75 ft

Then the circumference is ...

C = πd = 3.14159·0.75 ft ≈ 2.3561925 ft

The number of rotations in 300 ft is ...

(300 ft)/(2.3561925 ft/rotation) ≈ 127.32 rotations

The tires make about 127 rotations when you travel 300 feet.