Respuesta :

Given the figure, we can deduce the following information:

Perimeter = 65 in.

length = n

width = 11 2/4 in. = 23/2 in.

To determine the value of n, we use the formula:

[tex]P=2(l+w)[/tex]

where:

P= Perimeter

l=length

w=width

We plug in what we know:

[tex]\begin{gathered} P=2(l+w) \\ 65=2(n+11\frac{2}{4}) \\ \text{Simplify and rearrange} \\ 65=2(n+\frac{23}{2}) \\ \frac{65}{2}=n+\frac{23}{2} \\ n=\frac{65}{2}-\frac{23}{2} \\ n=\frac{65-23}{2} \\ n=\frac{42}{2} \\ \text{Calculate} \\ n=21 \end{gathered}[/tex]

Therefore, the value of n is 21 in.