find the perimeter of the triangle

Question

find the perimeter of the triangle
(x=3) ft
(2x+1)FT
6ft

Answer 1

Kim, I am going to assume you made the same error I do sometimes and you meant (x - 3)ft.

 

The perimeter is all the sides added together.

 

(x - 3) + (2x + 1) + 6

 

We can take the parentheses out.

 

x - 3 + 2x - 1 + 6.

 

Now, we have to combine like terms.

 

2x + x = 3x

 

-3 - 1 + 6 = 2

 

So, our perimeter is 3x + 2.

 

Make sense?