A rectangular yard has a​ width-to-length ratio of 2 font size decreased by 3 : font size decreased by 3 9. If the distance around the yard is 2200 ft​, what are the dimensions of the​ yard?

Respuesta :

Answer:

The width of the yard will be = 200 ft

The length of the yard will be = 900 ft

Step-by-step explanation:

Given:

Ratio of width to length of a rectangular yard = 2 : 9

The distance around the yard = 2200 ft

To find the dimensions of the yard.

Solution:

Let the width of the rectangular yard be = [tex]2x[/tex]

So, the length of the yard will be = [tex]9x[/tex]

The perimeter of a rectangle is given as:

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

where [tex]l[/tex] represents length and [tex]w[/tex] represents width of the rectangle.

Plugging in the given values of length and width of the yard.

[tex]P=2(9x+2x)[/tex]

Simplifying.

[tex]P=2(11x)[/tex]

[tex]P=22x[/tex]

The perimeter given = 2200 ft.

Thus, the equation to find [tex]x[/tex] can be given as:

[tex]22x=2200[/tex]

Dividing both sides by 22.

[tex]\frac{22x}{22}=\frac{2200}{22}[/tex]

∴ [tex]x=100[/tex]

The width of the yard will be = [tex]2\times 100 = 200\ ft[/tex]

The length of the yard will be = [tex]9\times 100 = 900\ ft[/tex]

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