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Farmer wants to enclose a rectangular area that is 600 sq. ft. He is using his barn for one of the sides. The barn is 30 feet long and he does not want the pen to extend longer than the barn. How much fencing will need to be purchased?

  • Math -

    so let the width be x , we know the length is 30
    30x = 600
    x = 20

    so he needs 20+20+30 = 70 ft

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