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Brianna is driving on a long road trip. She currently has 9 gallons of gas in her car.

Each hour that she drives, her car uses up 2 gallons of gas. How much gas would be in
the tank after driving for 2 hours? How much gas would be left after t hours?

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3 answers

  1. after t hours, she has 9-2t gals left

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  2. 9 gal - (2 gal/hr ) 2 hr = 9 gal - 4 gal = 5 gal

    9 - 2 t

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  3. 1hr=2 gal
    2hr=4gal
    9gal-4gal=5gal
    your answer is 5gal

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