Question 402248
Perimeter {{{P=2*(L+W)}}}
L - length
W - width
If width is x ft, then length is (x+20)
Put all in perimeter formula
{{{500=2*((x+20)+x)}}}
{{{500=2*(x+20+x)}}}
{{{500=2*(2x+20)}}}
{{{500=4x+40}}}
{{{4x=500-40}}}
{{{4x=460}}}
{{{x=460/4}}}
{{{x=115}}}
So width is 115 ft, then length is 115+20=135 ft
Answer: 115 ft and 135 ft