You are helping your dad build a rectangular dog park. The length of the dog park feet can be represented by
8x + 2 and the width in feet can be represented by 2x - 12. If your dad bought 160 feet of fencing
(perimeter), what is the length of the dog park?

Respuesta :

Answer:

The length of the dog park is 74 feet.

Step-by-step explanation:

Given that,

Length of park = (8x+2)..(I)

Width of park = (2x-12)...(II)

Perimeter = 160 feet

We need to calculate the value of x

Using formula of perimeter of rectangular park

[tex]P=2(l+w)[/tex]

Where, l = length

w = width

Put the value into the formula

[tex]160=2(8x+2+2x-12)[/tex]

[tex]160=20x-20[/tex]

[tex]x=\dfrac{160+20}{20}[/tex]

[tex]x=9[/tex]

We need to calculate the length of the dog park

Using equation (I)

[tex]l=8x+2[/tex]

Put the value of x

[tex]l=8\times9+2[/tex]

[tex]l=74\ feet[/tex]

Hence, The length of the dog park is 74 feet.