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13 June, 02:58

Delilah wants to fence in an area of land in which to keep chickens. She buys 31 feet of fencing to enclose a circular area. If 9 square feet will support one chicken, what is the greatest number of chickens Delilah can keep enclosed in the fenced-in area?

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  1. 13 June, 03:26
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    Suppose r is the radius.

    2 π r = 31. then we get r = 4.93

    so the area of the circle is πr^2=76.36

    in the end, 76.36:9=8.48≈8

    the answer is 8
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