Answer:
4 miles per gallon of fuel.
Step-by-step explanation:
The fuel efficiency of a car is given by the ratio of distance traveled by car to the volume of fuel used.
Now, given that Nate's car will go 20 miles on 5 gallons of fuel.
Therefore, the fuel efficiency of Nate's car will be given by the ratio
= [tex]\frac{\textrm {Dixctance traveled by the car}}{\textrm {Volume of fuel used}}[/tex]
= [tex]\frac{20}{5}[/tex]
= 4 miles per gallon of fuel. (Answer)