The equation for the length of the rectangle is L = 30 - W.
The given parameters:
perimeter of Andy's rectangular patio = 60 feet
The formula for perimeter of a rectangle is calculated as follows;
[tex]P = 2(L+W)[/tex]
Where;
P is the perimeter
L is the length of the rectangle
W is the width of the rectangle
To find the equation for the length of the rectangle, make L the subject of the formula;
[tex]P = 2(L+W)\\\\60 = 2(L+W)\\\\divide \ both \ sides \ by \ 2\\\\\frac{60}{2} = \frac{2(L+W)}{2} \\\\30 = L+ W\\\\L = 30 - W[/tex]
Thus, the equation for the length of the rectangle is L = 30 - W.
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