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math

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the perimeter of rectangle y is equal to its area. rectangle z has the same perimeter as rectangle y. The length of rectangle z is 5 inches and the width is 3 inches. Explain how you can find the length and width of rectangle y.

  • math -

    Py = Pz = (2 * 5) + ( 2 * 3)

    write the equation for the perimeter of y using the length and width

    (2 * Ly) + (2 * Wy) = Py = Pz

    write the equation for the area of y using the length and width

    Ly * Wy = Ay = Py = Pz

    you now have two equations with two unknowns that you can solve simultaneously

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