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Answer :

Answer

How much gas needed = 1/3 gallon of gas

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