Question

The tires on Miguel's bicycle have a diameter of 28 inches. How many feet has Miguel traveled when the tires complete 15 revolutions? Use 3.14 for π . Round to the nearest tenth of a foot if necessary. ft

Answer 1

109.9 feet

Explanation:

To find how many feet has Miguel traveled, we need to know the circunference of the tire:

C = pi*d = 3.14 * 28 = 87.92 inches

So, for each revolution of the tire, Miguel will travel 87.92 inches. So, to know the distance he will travel, we can do a rule of three:

1 revolution -> 87.92 inches

15 revolutions -> x inches

1/15 = 87.92/x

x = 87.92 * 15 = 1318.8 inches

As the question asks for the distance in feet, we convert from inch to foot by dividing the value of inches by 12, so:

distance in feet = 1318.8 / 12 = 109.9 feet