Our car has a 15-gallon gas tank. a lower grade of 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?

The difference in the cost of filling your tank between the two grades of gasoline is $2.28.

Step-by-step explanation:

Given : Our car has a 15-gallon gas tank. A lower grade of gasoline costs $2.96 per gallon. The premium grade gasoline costs $3.15 per gallon. There are three gallons left in your gas tank.

To find : What is the difference in the cost of filling your tank between the two grades of gasoline?

Solution :

The gas tank is of 15 gallons

There are three gallons left in the gas tank.

The tank has to be filled with 15 - 3 = 12 gallons

A lower grade of gasoline costs $2.96 per gallon.

So, the cost of filling the tank with the lower grade gasoline is

A upper grade of gasoline costs $3.15 per gallon.

So, the cost of filling the tank with the lower grade gasoline is

The difference in the cost of filling your tank between the two grades is

Therefore, the difference in the cost of filling your tank between the two grades of gasoline is $2.28.