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15 October, 03:37

the area of a rectangle is 57 square units if the length is 2 times the width then find the dimension of the rectangle

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Answers (2)
  1. 15 October, 04:02
    0
    The dimensions are 5.34 * 10.68 units to the nearest hundredth.

    Step-by-step explanation:

    If the width is x units then the length is 2x units.

    Area = width * length

    = x * 2x = 57

    2x^2 = 57

    x^2 = 28.5

    x = 5.34 = width and

    the length is 2*5.34 = 10.68.
  2. 15 October, 06:06
    0
    √114 = l

    √114/2 = w

    Step-by-step explanation:

    {l = 2w

    {57 = wl

    57 = w[2w]

    57 = 2w²

    28½ = w²

    √114/2 = w [Plug this back into both equations to get a length of √114]; √114 = l

    I am joyous to assist you anytime.
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