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Math Help - Need help setting up this problem....

  1. #1
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    Need help setting up this problem....

    A group of people have breakfast together before going to work. They calculate the tip to be $9.60, and from
    that figure out each personís individual share. Everyone counts the money, and tosses it in.
    But it comes up short! One reason is that the boss did not contribute to the tip, because he paid for breakfast.
    Another reason is that one of the group, Mr. P., refuses to tip because he doesnít believe in it. To cover the two
    non-contributors, everyone else has to put in an additional sixteen cents.
    How many people ate breakfast?

    I just need help setting up this equation - I do not need an actual answer
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  2. #2
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    Let n denote the number of people.

    9.60 / (n-2) - 9.60 / n = 0.16
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  3. #3
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    ok i'm still stuck.. can't figure out how to solve
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  4. #4
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    Multiply by n(n-2) throughout, and solve the resulting quadratic equation.
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