The amount of gas that would be left after 2 hours is 10.50 gallons
The amount of gas that would be left after t hours is 13 - 1.25t gallons
<h3>Calculating amount</h3>
From the question, we are to determine how much gas would be left after driving for 2 hours
From the given information,
Aria currently has 13 gallons of gas in her car
and
Each hour that she drives, her car uses up 1.25 gallons of gas.
Thus,
After 2 hours, her car would have used 2 × 1.25 gallons of gas
2 × 1.25 = 2.50 gallons of gas
Therefore,
The amount of gas that would be left after 2 hours = 13 gallons - 2.50 gallons
The amount of gas that would be left after 2 hours = 10.50 gallons
For the amount of gas that would be left after t hours
Since the car uses 1.25 gallons of gas per hour
Then,
The amount of gas that would be left after t hours = 13 - 1.25 × t
The amount of gas that would be left after t hours = 13 - 1.25t gallons
Hence,
The amount of gas that would be left after 2 hours is 10.50 gallons
The amount of gas that would be left after t hours is 13 - 1.25t gallons
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