Question

Marcus is considering two car rental plans. Plan A can be modeled with the equation C=30d, and Plan B can be modeled with the equation C=25d + 15, where C represents the cost in dollars and d represents the number of days a car is rented. Which statement would justily selecting Plan B instead of Plan A
A.Marcus rent a car for 1 day
B.Marcus rent a car for 2 days
C.Marcus rent a car for 3 days
D.Marcus rent a car for 5 days

Answer 1

Answer:

D. Marcus rent a car for 5 days

Step-by-step explanation:

You can solve this by simply plugging the answer choices into the variable d for both equations and comparing the total costs.

When you plug in 5 days you get:

Plan A

C = 30 x 5

C = 150

Plan B

C = 25 x 5 + 15

C = 140

The cost is less for Plan B in this case, so it is better to use Plan B when renting for 5 days.