Question #N864
A group of friends are planning a trip. They decide to rent a car for \$45 per day plus a one-time insurance fee of \$20. If the total cost of renting the car is \$145, how many days did the group rent the car?
A. 2
B. 3
C. 4
D. 5
Correct Answer is: B
Let's use the variable *d* to represent the number of days the car was rented. The total cost can be represented by the equation: 45d + 20 = 145. Subtracting 20 from both sides gives 45d = 125. Dividing both sides by 45 gives d = 2.78. Since we can't rent a car for a fraction of a day, the group rented the car for 3 days.