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Math Help - Writing an inequality

  1. #1
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    Writing an inequality

    Plz Help!

    Write an inequality to represent this situation:
    I have a budget of $50 and need to buy bottles of drink and packets of chips for a party. The drinks cost $1.65 each and the chips are $2.50 per packet.
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  2. #2
    MHF Contributor
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    It certainly should look like this:

    (stuff about the cost of drinks and chips) <= $50.00

    Other than that, the world is wide open to you. There are infinitely many such inequalities. Just make one up!
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  3. #3
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    Hello, checky123!

    Write an inequality to represent this situation:
    I have a budget of $50 and need to buy bottles of drink and packets of chips for a party.
    The drinks cost $1.65 each and the chips are $2.50 per packet.
    TKHunny is correct . . . There are many possible inequalities.


    But I suspect this is the one they're expecting:

    Let . \begin{array}{ccc}D &=& \text{number of bottles of drink} \\ C &=& \text{number of packets of chips} \end{array}

    The D bottles of drink cost a total of: . 1.65D dollars.

    The C packets of chips cost a total of: . 2.50C dollars.

    . . The total cost is: . 1.65D + 2.50C dollars.


    We can spend up to $50: . \boxed{1.65D + 2.50C \:\leq \:50.00}

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