Manuel wants to calculate how many miles his farthers car travels on one gallon of gas. He knows that on a fu 15- gallon tank of gas, the car can travel 225 miles. Write an proportion that he could use to calculate the cars mileage per gallon(x)

15/225=

15/(15*15)=

1/15 gallons per mile

15/225 = 1/x

To calculate the car's mileage per gallon, Manuel can set up a proportion using the given information.

Let x be the mileage per gallon of the car.
Using the concept of proportions, we can set up the following equation:

15 gallons / 225 miles = 1 gallon / x miles

We can rewrite this equation as:

15/225 = 1/x

Simplifying the equation further, we get:

x = (225 * 1) / 15

This can be simplified to:

x = 15

Therefore, the car's mileage per gallon is 15 miles.