The shape of Colorado is nearly a rectangle. The width is 100 miles less than the length. The perimeter is
about 1320 miles. Find the length and width of Colorado.

 width = 280 miles, length = 380 miles

Step-by-step explanation:

width: L - 100

length: L

Perimeter = 2(Length) + 2(width)

      1320 = 2(L)            + 2(L-100)

      1320 = 2L              + 2L - 200

      1320 =           4L            - 200

      1520 =           4L

       380 =              L

width: L - 100 ---> 380 - 100 = 280

length: L        ---> 380

Length = 380 miles

Width = 280 miles

Step-by-step explanation:

Width: w

Length: w+100

Perimeter = 2(length + width)

1320 = 2(w + w+100)

660 = 2w + 100

2w = 560

w = 280

w + 100 = 380

Length = 380 miles

Width = 280 miles