Respuesta :

length of rectangular = 3w
P=2L+2w
32=2L+2w
16=L+w
16=3w+w
16=4w
w=4
L=3*4=12
Area= Lw
Area=12*4= 48 ft^2

The deck’s area is 48 sq ft

Let  x represent width

Let 2x represent length

First step is to  find the perimeter

Using this formula

Perimeter = 2(length) + 2(width)

Let plug in the formula

2x+2(3x)=32

2x+6x=32

8x=32

x=32/8

x=4

Second step is to Substitute this value of x in the length and width.

width = 4ft

length = 12 ft  (4×3)

Now let multiply these values to find the area.

Using this formula

Area = Length × Width

Let plug in the formula

Area=4ft ×12ft

Area=48 sq ft

Inconclusion the deck’s area is 48 sq ft

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