Question

A car rental company charges a one-time application fee of 20 dollars, 45 dollars per day, and 15 cents per mile for its cars. Write a formula for the cost, C, of renting a car as a function of the number of days, d, and the number of miles driven, m.

Answer 1

Answer:

$C(d,m) = 20 + 45d + 0.15m$

Step-by-step explanation:

In this problem, we have that the cost of renting a car C is a function of the number of days d, and the number of miles driven, m.

There is also a fixed cost F.

So the equation for the cost of renting a car is:

$C(d,m) = F + a*d + b*m$

In which a is the daily cost and b is the cost per mile.

A car rental company charges a one-time application fee of 20 dollars, 45 dollars per day, and 15 cents per mile for its cars.

This means that $F = 20, a = 45, b = 0.15$

Write a formula for the cost, C, of renting a car as a function of the number of days, d, and the number of miles driven, m.

$C(d,m) = 20 + 45d + 0.15m$