Question

5. Toni received a $75 gift card to a gas station. Which of the following could be used to determine the price per gallon of gas if they put 9 gallons in the tank and had $39.45 remaining on the gift card?

1) 75-98-39.45

(2) 9-75g-39.45

(3) 75g-9-39.45

(4) 9g-75-39.45 ​

Answer 1

75 - 9g = 39.45

Explanation:

We know that the the value of the gift card ($75.00) minus the price of 9 gallons of gas (g) equals the remaining amount on the gift card ($39.45):

Initial gift card value - (gallon * price) = final gift card value

75 - 9g = 39.45

Thus, we could the equation 75 - 9g = 39.45 to solve for g, the price per gallon of gas.

It's hard to see from your characters which answer resembles 75 - 9g = 39.45, but it appears that (1) is correct if it's 75 - 9g = 39.45.