A rectangle has perimeter 72 cm and length of 31 cm. What is its width?

the width of the rectangle is 5

Step-by-step explanation:

because if the perimeter is 72 and the length is 31, 31 + 31 = 62 right? so then if you subtract 62 from 72 then you would get 10 right? so what is half of 10? 5 so the width of the rectangle is 5 because you have to add all the numbers together. 31 + 31 = 62 and 5 + 5 = 10 and 10 + 62 = 72 the perimeter!

Width: 5

Step-by-step explanation:

Perimeter is found by adding all the sides together.

1. Multiply 31 by 2 so that you get the total length of both sides.

2. 31 x 2 = 62

3. Subtract 62 from 72 in order to get the total width of both sides.

4. 72 - 62 = 10

5. Divide 10 by 2 to get the width of one side.

6. 10 / 2 = 5

Answer: 5 is your width.