Question

The total cost of gasoline varies directly with the number of gallons purchased. Edie pays $22.68 for 12

gallons of gasoline. Which equation shows the relationship between the total cost of gasoline, c, and the
number of gallons purchased, n?

A. c = 1.89n
B. n = 22.68c
C. c = 22.68n
D. n = 1.89c

Answer 1

The answer is A. c = 1.89n

Explanation:

This is pretty straightforward:

The cost (c) is $22.68

The number of gallons purchased (n) is 12

22.68 divided by 12 equals 1.89

Therefore c = 1.89n

What I want to know is: Where in the U.S. did Edie find gasoline for $1.89 per gallon?