Step 1:
Given data
For every 3 gallons, the fuel efficiency is 75 miles
Step 2:
To find the unit rate of fuel efficiency, you will divide 75 by 3.
[tex]\begin{gathered} \text{Unit rate of fuel efficiency = }\frac{75miles}{3\text{ gallons}} \\ =\text{ 25 miles/gallon} \end{gathered}[/tex]Step 3:
The unit rate of fuel efficiency = 25 miles/gallon
Final answer
The unit rate of fuel efficiency = 25 miles/gallon
