Question

Carl drives 36 miles in his car on 2 gallons of gasoline. How many gallons of gasoline does it take to drive 252 miles?

Answer 1

The answer is 14 gallons.

Explanation:

In order to determine the answer, we have to know about directly proportional.

A directly proportional happens when two measures always increase at the same time. If the measure A is increased, so the measure B will be increased too.

The only way that we could know if two measures are in directly proportional is by logic, or if the statement says it.

In this case, it is logic that if the car drives more miles, the car will need more gasoline.

The directly proportional is expressed by a constant. This constant is made by a fraction from two measures.

Given:

M=miles

G=gasoline

`(M)/(G)=(36)/(2)=18`

So, for 252 miles:

`(252)/(y) =18\\\\y=(252)/(18)= 14`

The amount of gasoline for 252 miles is 14 gallons.