Answer:
115ft and 135 ft
Step-by-step explanation:
L - length
W - width
If width is x ft, then length is (x+20)
Put all in perimeter formula
500= 2 times ((x+20)+x)
500= 2 times (x+20)+x)
500=2 times (2x+20)
500=4x+40
4x=500-40
4x=460
x=460/4
So width is 115 ft, then length is 115+20=135 ft
