Posted by OLIO :) on .
The length of a rectangle is 1 less than three times its width. The perimeter is 30 ft.
Find the length of this rectangle

Algebra 2 
Ms. Sue,
P = 2L + 2W
30 = 2(3W1) + 2W
30 = 6W  2 + 2W
32 = 8W
4 = W
~~~~~~~~~~~~~~~~~~~~~~~
(3 * 4)  1 = L