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Selena2345

  • 3 years ago

The capacity of the gas tank in Jennifer"s car is x gallons. She can drive 28 miles for each gallon of gas in the tank. Jennifer filled the tank completely and drove 98 miles. She then stopped and added 2 more gallons of gas. Part A: How many gallons of gas did Jennifer use to drive 98 miles ? Part B: Write an equation to find how far Jennifer could drive with the gas in her gas tank. Part C: Use the equation from Part B to find how far Jennifer could drive if her gas tank has a capacity of 18.5 gallons.

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  1. Selena2345
    • 3 years ago
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    Aripotta

  2. AriPotta
    • 3 years ago
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    well for a, divide 98 by 28

  3. Selena2345
    • 3 years ago
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    98/28=3.5

  4. AriPotta
    • 3 years ago
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    so a is 3.5 gallons

  5. Selena2345
    • 3 years ago
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    what about part b and part c

  6. AriPotta
    • 3 years ago
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    y = 28(x - 1.5)

  7. AriPotta
    • 3 years ago
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    do you know how i got that?

  8. Selena2345
    • 3 years ago
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    no

  9. Selena2345
    • 3 years ago
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    what about part c

  10. AriPotta
    • 3 years ago
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    so x is the tank's capacity. and we know she only used 3.5 gallons. so x - 3.5. but then she added 2 gallons. so x - 3.5 + 2 which simplified is x - 1.5. and she can get 28 miles per gallon, so we multiply that by 28

  11. AriPotta
    • 3 years ago
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    with part c you just substitute x with 18.5

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