Question

Demarco paid $3.19$3.19 per gallon both times that he stopped for gas on a weekend trip. He bought 12.5312.53 gallons of gas the first time and 11.8611.86 gallons the second time. Which expression shows the total cost in dollars of the gas he bought on this trip?

Answer 1

Answer: The total cost in dollars of the gas is $77.80.

Explanation:

since we have given that

Amount of gallon of gas he bought for the first time = 12.53

Amount of gallon of gas he bought for the second time = 11.86

According to question, He paid $3.19 per gallon both the times that he stopped for gas on a weekend trip.

So, our expression that shows the total cost in dollars of the gas he bought on this trip is given by

`12.53* 3.19+11.86* 3.19\\\\\text{ using distributive law}\\\\=3.19(12.53+11.86)\\\\=\$77.80`

Hence, the total cost in dollars of the gas is $77.80.