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12th grade

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The length of a rectangular floor is 2 feet more than its width. The area of the floor is 168 square feet. Kim wants to use a rug in the middle of the room and leave a 2 foot border of the floor visible on all sides. What should the length (the longer side) of the rug be?

  • Math, not "12th grade" -

    Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.

  • 12th grade -

    first first the dimensions of the room ....

    x(x+2) = 168
    x^2 + 2x - 168 = 0
    (x-12)(x+14) = 0

    I am sure you can take it from here

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