Question 1044830

The perimeter of a rectangular window is 30 feet. The width of the window is 3 feet more than the length. What are the dimensions of the window?
<pre>Let length be L, and width, W
Then, W = L + 3
2(L + W) = 2(15)
L + W = 15
L + L + 3 = 15 ----- Substituting L + 3 for W
2L = 15 - 3
2L = 12
L, or length = {{{12/2}}}, or {{{highlight_green(matrix(1,2, 6, feet))}}}
Width: 6 + 3, or {{{highlight_green(matrix(1,2, 9, feet))}}}