Question

100 points
I need full explanation.

Answer 1

• Width be x
• Length is 3x

Now

• 2(L+B)=Perimeter
• 2(x+3x)=48
• 2(4x)=48
• 4x=24
• x=6

Length=3(6)=18

Answer 2

length=18units, width=6 units

Explanation:

let width=x

then length= 3x

perimeter=2l+2b

48=2(3x)+2x

x=6

width=x=6units

length=3x=3(6)=18units