To fill the entire 15 gallon gas tank, we would need 12 more gallons of gasoline.
For lower grade gasoline:
12 gallons * $2.96/gallon = $35.52
For premium grade gasoline:
12 gallons * $3.15/gallon = $37.80
The difference in cost between filling the tank with lower grade and premium grade gasoline is:
$37.80 - $35.52 = $2.28.
Therefore, the cost of filling the tank with premium grade gasoline is $2.28 more expensive than filling it with lower grade gasoline.
Our car has a 15 gallon gas tank. A lower grade or gasoline costs $2.96 per gallon. The premium grade gasoline costs $3.15 per gallon. There are three gallons left in your gas tank. What is the difference in the cost of filling your tank between the two grades of gasoline?
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