Question

Help me llliad plz neeeeeeed help

Answer 1

Lets get started :)

Diameter = 2.5 ft
Radius =
`(diameter)/(2) = (2.5)/(2) = 1.25`

a) The Circumference formula of a circle is given in the picture below, we can plug-in the given information

C = 2
`\pi`(1.25) or 2.5
`\pi`
≈ 7.85 ft
(we can leave the answer in terms of pi {
`\pi`})

b) We divide the total number of distance the tire will travel by the circumference to find how many times the tire will roll


`(5280)/(circumference) = (5280)/(2.5 \pi )`
(I have used the value in feet because we found the circumference in feet units and notice that I took the value of circumference to be 2.5
`\pi` instead of 7.85, to increase accuracy)

672.2

The tire will rotate 672 times (a tire cannot roll a decimal times, so we take to the nearest whole number) to travel 1 mile