A driver drove 90 miles and used 4 gallons of gasoline. What is the vehicle’s consumption rate in miles per gallon?(1 point) Responses 22.5 miles per gallon 22.5 miles per gallon 20 miles per gallon 20 miles per gallon 490 miles per gallon Start Fraction 4 over 90 End Fraction miles per gallon 22.5 gallons per mile
To calculate the vehicle's consumption rate in miles per gallon (mpg), you divide the total miles driven by the total gallons of gasoline used:
\[ \text{Consumption rate (mpg)} = \frac{\text{Total miles driven}}{\text{Total gallons used}} \]
\[ \text{Consumption rate (mpg)} = \frac{90 \text{ miles}}{4 \text{ gallons}} \]
\[ \text{Consumption rate (mpg)} = 22.5 \text{ mpg} \]
So the vehicle's consumption rate is 22.5 miles per gallon.