A rectangular closet has a perimeter of 10 feet. If the width of the closet is 3 feet what is the length of the closet?

The perimeter is equal to 2 * width + 2 * length.

We are provided that the width is 3 feet and the perimeter is 10 feet. So,

2 * 3 + 2 * length = 10

6 + 2 * length = 10

2 * length = 4

length = 2

The answer is 2 because if 2 sides are 3, then you add 3+3 which is 6. Then you think what plus 6 equals 10 which is 4. Finally, you have to take 4 and split it in half which is 2. Your answer is 2.