Answer:
Length= 24 feet
Width= 16 feet
Step-by-step explanation:
Equation 1) Perimeter = 2L+2W
Equation 2) Perimeter = 80
Equation 3) L-8=W
1) Substitute L-8 as W in the first equation, and 80 as the Perimeter:
2L+2(L-8)=80
2) Distribute 2 to L and -8:
2L+2L-16=80
3) Add 16 to both sides, and combine alike terms:
4L=96
4) Divide both sides by 4:
L=24
5) Substitute 24 as L in the third equation:
24-8=W
6) Solve:
W=16
