Question

Mary is learning to use her new exercise tracker wristband and cell phone app. Her stride measures 2 feet, 8 inches. Which of the following is the distance she will walk if she takes 4,500 steps?

A. 4,500 feet
B. 12,000 feet
C. 12,600 feet
D. 9,360 feet

Answer 1

Answer: B. 12,000 feet

Explanation:

Given : The measure of Mary's stride= 2 feet, 8 inches.

We know that 1 feet =1 2 inches

Then, the measure of Mary's stride=
`2+(8)/(12)\ feet`

`=(12(2)+8)/(12)=(32)/(12)\ feet`

No,. of steps = 4500

Then, Distance = No. of steps x Measure of Mary's stride

=
`4500*(32)/(12)\\\\=375*32=12000\ feet`

Hence, the distance she will walk if she takes 4,500 steps=12000 feet

Hence, the correct answer is B. 12,000 feet