Question

Jim needs to rent a car. A rental company charges $21.00 per day to rent a car and $0.10 for every mile driven.

• He will travel 250 miles.
• He has no more than $115 to spend.
Write an inequality that can be used to determine, d, the maximum number of days that Jim can rent a car and then solve.

Answer 1

115 > 21d + 25

Explanation:

1. He has to spend less than 115, so our current inequality is 115 > ???.

2. He has to spend $21 for each day, d, he drives, so that brings us to 115 > 21d. But we aren't done yet.

3. Because he has to spend $.10 for each mile driven and he's driving 250 miles, we have to multiple 250x.10, which brings us to 25. Leaving our answer at 115 > 21d + 25.