Question 954398
W=width; L=length=5W: P=perimeter=2(L+W)=12 inches
P=2(L+W) 
12 in=2(L+W)
6 in=L+W
6 in=5W+W
6 in=6W
1 in=W ANSWER: The width is 1 inch.
CHECK
L=5w=5 in 
P=2(L+W)
12 in=2(5 in+1 in)
12 in=2(6 in)
12 in=12 in