Q:

Maria is renting kayaks from a local shop that charges a $10 fee, plus an hourly rate of $7.50. For how long can Maria rent the kayak if she pays a total of $70?

Accepted Solution

A:
In this case, Maria is rent a kayaks that charge a $10 upfront fee, with an hourly rate of $7.50. Then the equation of the price should look like this: f(x)= 10+7.5x

If Maria has a total money of 70$, then the duration of rent should be:
f(x)= 10+7.5x
70= 10+ 7.5x
7.5x= 70-10
x= 60/7.5= 8 hours