Question

Write the perimeter of the triangle as a
simplified expression.
3y + 5
бу
Y-4

Answer 1

Answer:

10y+1

Step-by-step explanation:

The perimeter is the three sides added together

3y+5+6y+y-4=

10y+1

Answer 2

Answer:

$\huge\boxed{P_\triangle=10y+1}$

Step-by-step explanation:

The formula of a perimeter of a triangle:

$P_\triangle=a+b+c$

We have:

$a=3y+5,\ b=6y,\ c=y-4$

Substitute:

$P_\triangle=(3y+5)+(6y)+(y-4)=3y+5+6y+y-4$

Combine like terms:

$P_\triangle=(3y+6y+y)+(5-4)=10y+1$