What is the answer

Question

The Smith family is planning to rent a car for a day trip. The car rental company charges a flat fee of $80 plus $15 for each hour. They must pay for an entire hour, even if the car is returned early. For example, if they rent the car for 4 and a half hours, they must pay for a total of 5 hours.

If the Smith family wants to spend $150 or less on the car rental for the day, how many hours can they rent the car? Write an inequality to determine the number of days the Smiths can rent the car and stay within budget.

Answer 1

15x + 80 < 150 where x is the number of days

therefore, subtracting 80 from both sides

15x = 150 - 80

15x = 70, then dividing both sides by 15

x = 70/15

x = 4.66

x = 4, they can only rent the car for 4 hours.