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The length of a rectangle is three times
the width. The perimeter of the rectangle
is 24 inches. Write and solve an equation
to determine the width of the rectangle.

Respuesta :

Answer: 3 inches

Step-by-step explanation:

Let x= width of rectangle

Let y=length of rectangle

y=3x, 2x+2y=24

Substitution:

2x+2(3x)=24

8x=24

x=3

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