algebra

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You are putting a stone borderof uniform width around a rectangular garden that measures 6 yards by 15 yards. You only have enough stone to cover 100 square yards. How wide should the border be? Solve using the 5 step process.

  • algebra -

    Area of garden NOT covered with stone border
    = (15-2x)(6-2x)

    so
    (15)(6) - (15-2x)(6-2x) = 100

    solve this resulting equation for x

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