Question

The cost of purchasing gasoline varies directly with the number of gallons purchased. Kali paid $52.90 for 23 gallons of gas. What is the direct variation equation that relates y, the cost of a gasoline purchase, to x the number of gallons?

Answer 1

y = 2.3x

Explanation:

y = kx

52.9 = 23x

52.9 ÷ 23 = x

x = 2.3