SOLUTION: A flat rectangular piece of aluminum has a perimeter of 64 inches. The length is 8 inches longer than the width. Find the width.

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Question 241748: A flat rectangular piece of aluminum has a perimeter of 64 inches. The length is 8 inches longer than the width. Find the width.
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
L=W+8
2L+2W=64
2(W+8)+2W=64
2W+16+2W=64
4W=64-16
4W=48
W=48/4
W=12 ANS. FOR THE WIDTH.
L=12+8=20 ANS. FOR THE LENGTH.
PROOF:
2*20+2*12=64
40+24=64
64=64