The distance a car can travel in miles is modeled by the equation #y=23x-6#, where #x# represents the number of gallons of gas the car uses. lf the car traveled 86 miles, how many gallons of gas did it use?

1 Answer
G_Ozdilek
Aug 15, 2016

4 gallons of gas

Explanation:

Since y = 86. y+6 = 23x. Then the equation becomes 86+6 = 23 x. When you solve this you will get x = 4. In other words, this car consumes 4 gallons of gas to 86 miles away. In other words, this car's gas (fuel) efficiency is 4.65 gallons of gas per one hundred mile.

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