Question

The expression 3 1/2 + 18 represents the perimeter of the rectangle shown. Write an expression that represents the length of the rectangle.

a) 3 1/2 + 18
b) 3x + 18
c) 3(x + 2)
d) 3/2x + 18

Answer 1

The expression 3 1/2 + 18 represents the perimeter of the rectangle. To find the length, subtract the width from the total perimeter.

Step-by-step explanation:

The expression 3 1/2 + 18 represents the perimeter of the rectangle. To find the length of the rectangle, we need to subtract the two sides that make up the width from the total perimeter. The remaining value will be the length of the rectangle. So, the expression that represents the length of the rectangle is 3 1/2 + 18 - (width + width). Simplifying further, we get 3 1/2 + 18 - 2(width). Therefore, the correct option that represents the length of the rectangle is: c) 3(x + 2).