Question

As part of your physics class, you calculated your automobile’s average fuel usage over a short interval of time and found it to be 28 MPG. If you drive an average of 120 miles per week and the cost of gasoline averages $2.75 per gallon, how much do you spend per year on gasoline?

a. $156
b. $187.50
c. $208.50
d. $234

Answer 1

To determine the annual cost of gasoline for a vehicle with a 28 MPG fuel economy driving 120 miles weekly, calculate weekly gasoline consumption, multiply by the cost per gallon, and then by 52 weeks. The calculated annual cost is $613.60, which does not match any of the given options, suggesting an error in the provided information.

Step-by-step explanation:

To calculate the annual cost spent on gasoline for an automobile with an average fuel usage of 28 MPG, driving an average of 120 miles per week, at a gasoline cost of $2.75 per gallon, we need to perform the following steps:

1. Calculate the weekly gasoline consumption by dividing the weekly distance driven by the car's fuel economy: 120 miles ÷ 28 MPG.
2. Find the weekly cost by multiplying the weekly gasoline consumption by the gasoline cost per gallon.
3. Multiply the weekly cost by the number of weeks in a year (52) to determine the annual cost.

Let's perform these calculations:

1. Weekly gasoline consumption: 120 miles ÷ 28 MPG = 4.29 gallons.
2. Weekly cost: 4.29 gallons × $2.75 = $11.80.
3. Annual cost: $11.80 × 52 weeks = $613.60.

The closest answer to $613.60 is not listed as an option, indicating there may be an error in the provided options or in the calculation parameters given in the question.