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Algebra Word Problems

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when going more than 38 miles per hour the gas mileage of a certain car fits the model y=43.81 - 3.95x where x is the speed of the car in miles per hor and y is the miles per gallon of gas. Based on model what speed will the car average 15 miles per gallon

  • Algebra Word Problems - ,

    15=43.81-3.95x
    subtrace 43.81 from each side, then divide both sides by 3.95

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