Question

P

fllustrative
IVA Mathema
7. A student on the cross-country team runs 30 minutes a day as a part of her training,
Write an equation to describe the relationship between the distance she runs in
miles, D, and her running speed, in miles per hour, when she runs:
a. at a constant speed of 4 miles per hour for the entire 30 minutes​

Answer 1

The required equation is
`D=0.5(4)`

Explanation:

Consider the provided information.

Student on the cross-country team runs 30 minutes a day as a part of her training,

30 minutes = 0.5 hours

As we know
`Speed=(Distance)/(Time)`

Let the distance she runs in miles, is represented by D, and her running speed, in miles per hour is represented by S.

Therefore, the required equation is:
`S=(D)/(0.5)`

Part (A) At a constant speed of 4 miles per hour for the entire 30 minutes​.

Substitute S=4 in above equation.

`4=(D)/(0.5)`

`D=0.5(4)`

`D=2`

Hence, the required equation is
`D=0.5(4)`