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 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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