181k views
0 votes
The perimeter of a Jamaican flag is 180 inches. The length is twice it’s width. Find the dimensions of the flag

User Suzannah
by
8.3k points

1 Answer

6 votes

The perimeter of flag (rectangle) is 2 (L + W). From given information, length (L) is twice as width (W). From this, you can rewrite the equation as:

Perimeter = 2 ( 2W + W ) = 120. To make it simpler, rewrite as 2 (3W) = 120 ---> 6W = 120.

After calculating/solving for W, you will get W = 20.

Let's go back and plug this value into perimeter equation 2 ( 2W + W) =120 to find out the length and width.

The Width is 20 and length is twice that which it gives 40.

Since the unit is in inches, Length = 40 in, and Width = 20 in.

Plug these two measurements into the equation 2 (L + W) = 120 to see if it comes out to be true.

2 (40 + 20) = 120 2 (60) = 120 120 = 120 It works. Finally, Length = 40 in and Width = 20 in.

I hope my work isn't too long. Good luck to you,

User Beingyogi
by
8.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.