Gavin wants to estimate the gas mileage in his car.

At 85,076 mi, he fills the tank with 10.2 gal of gasoline.

At 85,548 mi, he fills the tank with 11.4 gal of gasoline.

Find the mileage per gallon. Round to the nearest tenth.

He drove 472 miles on 10.2 gallons.

472 / 10.2 = _____________ miles per gallon

46.3

To find the mileage per gallon, we need to calculate the difference in mileage divided by the difference in gallons.

First, let's find the difference in mileage:
85,548 mi - 85,076 mi = 472 mi

Next, let's find the difference in gallons:
11.4 gal - 10.2 gal = 1.2 gal

Now, we can calculate the mileage per gallon:
472 mi / 1.2 gal ≈ 393.3333 mi/gal

Rounding to the nearest tenth gives us the mileage per gallon:

The mileage per gallon is approximately 393.3 mi/gal.