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Algebra

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The perimeter of a rectangle is 90 meters. The length is 9 meters more than twice the width. Find the dimensions.

I need the length and the width.

Thanks!

  • Algebra - ,

    width = w
    length = (9+2w)
    90 = 2 (w + (9+2w) )
    45 = 3 w + 9
    36 = 3w
    onward :)

  • Algebra - ,

    ah, 2x + (4x+18) = 90
    x = 12

  • Algebra - ,

    A rectangle is 5 times longer then it is wide. If perimeter of the rectangle is 222m. What are its dimensions

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