Question

Write an expression for the perimeter of the triangle shown below:

A triangle is shown with side lengths labeled 0.5x plus 9, 3x, and negative 3.4x minus 25.


6.9x − 16

6.9x + 16

0.1x − 16

0.1x + 16

Answer 1

6.9x - 16

Explanation:

Answer 2

The perimeter of a triangle is the sum of all sides of the triangle.

(0.5x + 9) + (3x) + (-3.4x - 25)

0.5x + 9 + 3x - 3.4x - 25

0.1x - 16