Donut2004 Donut2004

13-11-2018
Mathematics

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Can someone help me with question 4 please

Can someone help me with question 4 please class=

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puppys12 puppys12

13-11-2018

2L + 2W = 32

L*W = 64 L = 64/W

2(64/W) + 2W = 32

128/W + 2W = 32

128 + 2W^2 = 32W

2W^2-32W+128 = 0 solve

W = 8

8L = 64 Plug W into an equation

L = 8

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