Question

Tiffany needs to rent a car while on vacation. The rental company charges $18.95, plus 17 cents foreach mile driven. If Tiffany only has $40 to spend on the car rental, what is the maximum number ofmiles she can drive?

Answer 1

Let x be the number of maximum miles that Tiffany can drive, then we can set the following equation:

`18.95+0.17x=40.`

Subtracting 18.95 from the above equation we get:

`\begin{gathered} 0.17x=40-18.95, \\ 0.17x=21.05. \end{gathered}`

Dividing by 0.17 we get:

`x=(21.05)/(0.17)=123.8235294.`

Now, since the cost is for each mile, then we have to round to the nearest lowest whole number, therefore, she can drive for 123 miles.

Answer: 123 miles.