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28 February, 20:50

There are 15 plates and each plate is either 7 or 12 inches diameter. Which systems of equations do you use to find the number of 7 inch plates, x and 12 inch plates, y

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  1. 28 February, 22:25
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    The equation is x + y = 15

    Step-by-step explanation:

    It is given that,

    There are 15 plates and each plate is either 7 or 12 inches diameter.

    Let the number of 7 inch plates be x and 12 inch plates be y

    To find the equation

    Total number of plates = 15

    By using the given information, we can write

    x + y = 15

    Therefore the equation is x + y = 15
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