Question

Mrs.Magdalino kept records on how much she spent on gasoline and the maintenance of her car. She found that it cost $485 to drive 500 miles in a month. Find the cost per month.Write a rule to describe the cost c for gasoline and the maintnance of a car as a function the number of miles m the car is driven.

Answer 1

Cost per mile = $\frac{cost}{number of miles}$

$= \frac{485}{500}$

= 0.97

Now,

c - cost for gasoline and maintenance and

m - number of miles traveled

Hence, the required expression is c = 0.97m.