For this case we have that by definition, the perimeter of a rectangle is given by:
[tex]P = 2l + 2w[/tex]
Where:
l: is the length of the rectangle
w: Is the width of the rectangle
According to the data of the statement we have:
[tex]P = 440 \ yards\\l = w + 30[/tex]
Substituting we have:
[tex]440 = 2 (w + 30) + 2w\\440 = 2w + 60 + 2w\\440 = 4w + 60\\440-60 = 4w\\380 = 4w\\w = \frac {380} {4}\\w = 95 \ yards[/tex]
So the length is:
[tex]l = 95 + 30 = 125 \ yards[/tex]
Answer:
[tex]w = 95 \ yards\\l = 95 + 30 = 125 \ yards[/tex]