Math

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You go to dinner and decide to leave a 15% tip for the server. You had $45 when you came to tthe restaurant.

What is a function that relates the cost of the meal c to the amount of money you have left A(c).

  • Math -

    that would be

    A)c) = 45 - 1.15c

    eg. if your meal was $30, your tip would be 30*.15 = 4.50
    so your meal would cost 34.50

    you would have left 45-34.50 = 10.50

    from the function
    A(30) = 45 - 1.15(30) = 10.50

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