Question

Alexandra paid $7 to park her car for 3 hours at the parking garage. The garage charges an hourly parking rate.

Write an equation that shows the relationship between the number of hours parked (p) and the cost in dollars (c).

Answer 1

3p=7c
If she parked for another 3 hours, it would be:
3p+3p=7c+7c

Answer 2

`c=(7)/(3)p`

Explanation:

Let p be the number of hours and c be the cost in dollars.

We have been given that Alexandra paid $7 to park her car for 3 hours at the parking garage. The garage charges an hourly parking rate.

The hourly charges would be total amount divided by total time.

`\text{The hourly charges}=(\$7)/(3)`

The cost of parking for p hours would be
`(7)/(3)p`

Therefore, our required equation would be
`c=(7)/(3)p`.