The perimeter of a rectangle is 24 in. and its length is 3 times its width. What are the length and the width of the rectangle?

1 Answer
Nick
Apr 2, 2018

The length is 9 inches and the width is 3 inches

Explanation:

The dimensions can be found by creating a variable "x" for the sides of the rectangle, where x is the width, and because the length is three times the width, length is equal to 3x

We then set up an equation for the perimeter #p=2l + 2w#
and plug in our x values for length and width.

The work is shown below

enter image source here

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