Answer:
Length-65 ft Width: 85
Step-by-step explanation:
Let's set the length as x, and the width as x+20 (because it is 20 ft longer than length)
We know that 2L+2W=Perimeter
We can substitute x and x+20 in for 2L and 2W, and 300 for Perimeter
New Equation: 2(x) +2(x+20)=300
After Distribution: 2x+2x+40=300
Combine like terms: 4x+40=300
Subtract 40 from both sides: 4x=260
Divide 4 on both sides and you get x=65 (Length)
Add 20 to get width : x+20= 85
I hope it helped! :)
