Question 984662
{{{P=2L+2W=96}}}
{{{L+W=48}}}
And
{{{L=5W}}}
Substituting,
{{{5W+W=48}}}
{{{6W=48}}}
{{{W=8}}}{{{ft}}}
So,
{{{L=5(8)}}}
{{{L=40}}}{{{ft}}}