Answer
How much gas needed = 1/3 gallon of gas
Step-by-step explanation:
The hybrid car covers 45 miles per gallon
Using the below concept
Work = rate x number of gallon
Let rate = 45 miles per gallon
Work = 15 miles
Work = rate x number of gallon
Number of gallon = Work / rate
Number of gallon = 15 / 45
Number of gallon = 1/3 gallon
Therefore, the hybrid car can cover 15 miles with 1/3 gallon of gas