A bike wheel as a radius of 13 inches. About how far does the bike wheel travel in:
a. 1 rotation?
b. 5 rotations?
c. 30 rotations?

a. 81.6 inches

b. 408 inches

c. 2480 inches

Step-by-step explanation:

circumference  = 2 π r = 2 x 3.14 x 13 = 81.6 inchess

in feet = 81.6 /12

6.8 feet

it's equivalent, so we can say that its equal.

let's call the denominator x and the numerador is 18 less then denominator, x - 18.

multiply

2.x = 5.(x - 18)

2x = 5x - 90

90 = 5x - 2x

90 = 3x

x = 90/3

x = 30

so: