Question

The short sides of a rectangle are 2 inches. The long sides of the same rectangle are three less than an unknown

number of inches.
If the perimeter of the rectangle is 22 inches, what is the value of the unknown number?

Answer 1

Explanation:

picture a rectangle. now on both short sides, put a 2. on the long sides, but an x.

we know to find perimeter, we add all sides together. so, our equation should be

2 + 2 + x + x = 22.

2+2=4

22 - 4 = 18.

18÷2=9

the long sides equal 9.