I am given the perimeter of the rectangle. It is 96cm. The length is 3 times the width. What are the measurements of the 4 sides of the rectangle? I need the formula please.The answer is 12 and 36, I think.

Answer 1

You have to create your own "formula" or equation by translating the English into Math.

<<The length is 3 times the width.>> --->

If we let the width be x, then the length is 3x

The perimeter is made up of twice the length plus twice the width and that is given to be 96

so...

2(3x) + 2(x) = 96

there is your formula, all you have to do is solve it to get x= 12