Question

Clara has driven 70,000 miles in her car. On average, she drives 26 miles every day. Write a rule that represents her miles driven m as a function of time d.

Answer 1

`m(d)=26\ d`

where
`m` represents miles driven

and
`d` represents number of days driven.

Explanation:

Given:

Total distance driven in miles = 70,000

Average distance driven each day = 26 miles

Taking average as unit rate of miles covered per day.

∴ we can say the car covers 26 miles per day.

Using unitary method to find miles driven in
`d` days.

In 1 day miles driven = 26

In
`d` days miles driven =
`26* d =26\ d`

So, to find
`m` miles driven the expression can be written as:

`m(d)=26\ d`