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5 February, 10:00

A rectangle has a perimeter of 34 cm. if 2/3 of its length is equal to 3/4 of its width. find the dimensions of the rectangle.

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  1. 5 February, 11:13
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    Perimeter of the rectangle = 34 cm

    Let us assume the length of the rectangle = x

    Let us assume the width of the rectangle = y

    Then

    Width of the rectangle can be determined by the equation

    2x/3 = 3y/4

    2x * 4 = 3y * 3

    8x = 9y

    x = (9y) / 8

    Now

    Perimeter of the rectangle = 2 (length + width)

    34 = 2 (x + y)

    34/2 = x + y

    x + y = 17

    Now let us put the value of x in terms of y in the second equation

    x + y = 17

    (9y/8) + y = 17

    (9y + 8y) / 8 = 17

    17y = 17 * 8

    y = (17 * 8) / 17

    = 8 cm

    Now let us put the value of y in the equation

    x + y = 17

    x + 8 = 17

    x = 17 - 8

    = 9 cm

    So the length of the rectangle is 9 cm and the width of the rectangle is 8 cm.
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