Write an expression for the perimeter of the triangle shown below: (4 points) 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

The correct option is 3.

Step-by-step explanation:

It is given that the length of sides of a triangle are 0.5x+9, 3x, and -3.4x-25.

Let a=0.5x+9, b=3x, and c=-3.4x-25.

Perimeter of a triangle is the sum of length of all three sides.

Substitute a=0.5x+9, b=3x, and c=-3.4x-25 in the above equation.

On simplification, we get

Combine like terms.

Perimeter of the triangle is 0.1x-16. Therefore the correct option is 3.

2/3x + 7 = 29

step-by-step explanation:

two thirds = 2/3

plus a number = x

at least 29 = 29

there for you should get 2/3x + 7 = 29