Question

Some people advise that in very cold​ weather, you should keep the gas tank in your car more than half full. Lou​'s car had 5.5 gallons in the 13​-gallon tank on the coldest day of the year. Lou filled the tank with gas that cost ​$3.80 per gallon. How much did Lou spend on​ gas?

Answer 1

$28.50

Explanation:

Lou needed to add ...

13 - 5.5 = 7.5

gallons to the tank.

The cost of that gas was ...

($3.80/gal)×(7.5 gal) = $28.50

Lou spent $28.50 filling the gas tank.