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23 September, 18:51

At the beginning of a journey, the fuel tank of a car was 3/4 full. When the car reached its destination, it had consumed 60% of the gasoline in the tank. The full capacity of the fuel tank is w gallons.

A. Write an algebraic expression for the amount of gasoline left in the fuel tank.

B. If w = 15.5, how much gasoline was left at the end of the journey?

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  1. 23 September, 20:39
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    Let x be the amount of fuel left in the carw is The full capacity of the fuel tankthe algebraic expression for the amount of gasoline left in the car isx = w (3/4) * (1 - 0.6)

    b. w = 15.5x = w (3/4) * (1 - 0.6) x = (15.5) (3/4) * (1 - 0.6) x = 4.5 gallons left at the end of the journey
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