The perimeter of a rectangle is six times the width. If the length were increased by 4 inches and the width by 7 inches, the perimeter would be 160 inches. What is the width?

Question

anonymous · Answer

(1)p=6w, and (2)  160=2(l+4)+2(w+7)

anonymous · Answer

6w=138

anonymous · Answer

p=6w
p=2w+2l
so 6w=2w+2l
4w=2l
l=2w

160=2(l+4)+2(w+7)
plug l=2w
160=2(2w+4)+2(w+7)
160=4w+8+2w+14
138=6w
w=23

anonymous · Answer

160=p+8+14 therefore p=138=6w and w=23 easier :)

anonymous · Answer

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