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07-30-2007

L=2W-5 P=2(L+W)230=2(L+W) divide both side by 2115=L+W115-W=Lsince L=2W-5115-W=2W-5115+5=2W+W120=3WW=40ftsubstitute to L=2W-5L=2(40)-5L=75ft

07-30-2007	#3
dadi Guest Posts: n/a	L=2W-5 P=2(L+W)230=2(L+W) divide both side by 2115=L+W115-W=Lsince L=2W-5115-W=2W-5115+5=2W+W120=3WW=40ftsubstitute to L=2W-5L=2(40)-5L=75ft