Kate wants to build a fence around her yard. The width of the yard is one-third the length. The perimeter of the yard is 80 feet
. What is the length and width of her yard?
2 answers:
P = 2(L + W)
P = 80
W = 1/3L
80 = 2(L + 1/3L)
80 = 2(3/3L + 1/3L)
80 = 2(4/3L)
80 = 8/3L
80 * 3/8 = L
240/8 = L
30 = L .... length (L) is 30 ft
W = 1/3L
W = 1/3(30)
W = 30/3
W = 10 <== width (W) = 10 ft
The length is 30ft one third of 30 is 10 so the width is 10 ft.....30+30+10+10=80
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