You can put this solution on YOUR website! l=length
l-15=width
2l+2w=P
p=perimeter
2l+2(l-15)=82
2l+2l-30=82
4l-30=82
+30 +30
4l=112
4l/4=112/4
l=28
length=28yards
width=l-15
width=28-15
width=13yards
The width is 13 yards and the length is 28 yards.