Answer:
l = 12in
Step-by-step explanation:
Using the formula
[tex]P=2(l+w)[/tex]
Solving for l
[tex]l= \frac{P}{2} - w =\frac{38}{2} -7=12in[/tex]
Therefore, the length is 12 in
Answer:
12 inches
Step-by-step explanation:
7 + 7 + y = 38
14 + y = 38
y + 14 = 38
y + 14 - 14 = 38 - 14
y = 24
24 ÷ 2 = 12
Check:
7 + 12 + 7 + 12 = 38
