Question

Renting a car costs $55 plus $0.45 per mile, m. Write an

algebraic expression to represent the total cost of renting a car.

Answer 1

y = 0.45m + 55 [equation]

m [number of miles] = 100

Explanation:

Equation:

y = mx + b

y = 0.45m (# of miles) + 55 (daily fee)

To solve for m, the number of miles:

100 = 0.45m + 55

Subtract 55 from each side.

45 = 0.45m

`(45)/(0.45)` =m

m = 100

Answer 2

55 + .45m

Explanation:

The total cost of renting the car is the fixed cost plus the cost per mile

55 + .45m where m is the number of miles