Question 32461
THe formula for the perimeter is:
2(l+w)=P
In this case P = 1100 and length and width are unknown.
<pre>2l+2w=1100
Solve for length:
l=550-w (subsitution)
The Area in this case is A=60000
lw=60000
Subsitute for l
(550-w)(w)=60000
{{{-w^2+550w=60000}}}
{{{w^2-550w+60000=0}}}
Factor: (w-150) or (w-400)
Remvoe the 150 x=400
l=550-400
l=150
<b>Hence, the width is 150ft and the length is 400ft.
</b>Paul.