Question

The perimeter of a triangle is 11y - 2. Two of the sides are represented by the expression 3y - 1 and 3y + 1. Write an expression for the third side.

Answer 1

perimeter of a triangle is : P = a + b + c

P = 11y - 2
a = 3y - 1
b = 3y + 1
c = 3rd side

11y - 2 = (3y - 1) + (3y + 1) + c
11y - 2 = 6y + c
(11y - 2)/6y = c

I think ...you might want to get a second opinion

Answer 2

Thank you so much! :)

Answer 3

or
11y - 2 = 6y + c
11y - 6y - 2 = c
7y - 2 = c

Answer 4

These are the choices
a.
6y
c.
5y - 2
b.
6y - 2
d.
-2y

Answer 5

oops...I subtracted wrong
11y - 2 = 6y + c
11y - 6y - 2 = c
5y - 2 = c

Answer 6

I messes up on the first explanation....just disregard that one

Answer 7

typo...messed up

Answer 8

Thank you got the answer correct you're a life saver!