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Home > CC4 > Chapter 3 > Lesson 3.3.1 > Problem 3-115

3-115.

Examine the rectangle at right. If the perimeter is 120, which equation below represents this fact? Once you have selected the appropriate equation, solve for x. Homework Help ✎

       

    

 

The equation for the perimeter is c.

2(6x − 1) + 2(2x + 5) = 120

(12x − 2) + (4x + 10) = 120

16x + 8 = 120

16x = 112

x = 7