Answer:
132 ≤ 132
Step-by-step explanation:
The formula for the perimeter (P) of a rectangle is: P = 2L + 2W (L=length; W=width)
The problem states that P≤ 132 in ("at most")
and L = 8 + 2W
Now, the easy math:
2W = L - 8 [from previous equation]
P = 2L + (L - 8) [from first formula]
2L + (L - 8) ≤ 132
3L - 8 ≤ 132
3L ≤ 140 [keep the inequality when add to both sides]
L ≤ 46 2/3
Checking:
Is P = 2(46.66) + 2(38.66/2) ) ≤ 132
93.33 + 38.66 ≤ 132
