Answer:
Width of rectangle = [tex]W = x + 3[/tex] inches
Step-by-step explanation:
Given Data: Â
Length of rectangle = L = Â [tex]3x[/tex] inches ------>(Equation 1)
Area of rectangle = A = Â [tex]3x^{2} + 9x[/tex] square inches------>(Equation 2)
To find out: Â
Width of rectangle = W = ? Â
Formula: Â
Area = A = L×W
Width of rectangle = [tex]W = \frac{A}{L}[/tex]
Solution: Â
Width of rectangle = [tex]W = \frac{A}{L}[/tex]
Width of rectangle = [tex]W = \frac{3x^{2} + 9x }{3x}[/tex]
Width of rectangle = [tex]W = \frac{3x(x + 3) }{3x}[/tex]
Width of rectangle = [tex]W = x + 3[/tex] inches
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