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18 December, 04:53

Jenny and her friends are hungry for dessert. They buy $12.25 worth of cookies and ice cream sandwiches. The ice cream sandwiches costs $1.75 each and the cookies cost $0.75 each. If they buy 11 items total, create a system of equations to represent the problem and find the number of cookies and ice cream sandwiches bought by graphing.

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  1. 18 December, 05:10
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    If the number of ice cream sandwiches is x

    And the number of cookies is y

    Then

    1.75x + 0.75y = 12.25

    and

    x + y = 11

    y = 11 - x

    1.75x + 0.75 (11 - x) = 12.25

    1.75x + 8.25 - 0.75x = 12.25

    x + 8.25 = 12.25

    x = 12.25 - 8.25

    x = 4

    if x = 4

    4 + y = 11

    y = 11 - 4

    y = 7

    x = 4, y = 7
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