Question

Marilyn filled her car up with gasoline. She bought 13.8 gallons. Her trip mileage indicator shows that she had gone 290.1 miles since the last time she filled the tank. How many miles per gallon did her car average?

Answer 1

To find the average miles per gallon for Marilyn's car, divide the miles driven (290.1) by the gallons of gas used (13.8). The result is the car's fuel efficiency for the trip.

Step-by-step explanation:

The student is asking how to calculate the average miles per gallon (MPG) that Marilyn's car achieved. To calculate the MPG, you simply divide the number of miles driven by the number of gallons of gasoline used. In this case, Marilyn drove 290.1 miles and used 13.8 gallons of gasoline.

Step-by-step calculation:

1. Divide the miles driven by the gallons used: 290.1 miles ÷ 13.8 gallons.

2. Perform the division to get the average MPG.

Once the calculation is completed, the result is Marilyn's car's fuel efficiency for that particular trip. This type of problem is a practical application of division in real-life scenarios and is an example of how mathematics can be used to analyze everyday situations.