3-12 Using Models Use the model given to answer the questions about the object or process being modeled.
The gas mileage in (in mi/gal) of a car is modeled , where is the number of miles driven and is the number of gallons of gas used.
(a) Find the gas mileage for a car that drove 240 mi on 8 gal of gas.
(b) A car with a gas mileage is driven 175 mi. How many gallon of gas are used?
The mileage for a car.
It is given that the model for the mileage of the car is .
Here, is the number of miles driven and is the number of gallons of gas used.
We need to find the mileage of the car.
The number of miles traveled by the car is 240.
It means .
The number of gallon of gas used by the car is 8.
The number of gallons of gas used.
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