Question

Lesson 3 Problem-solving Practice Adding Linear Expressions 2. Heather was building a scale model of the Pentagon for her history class. 7" P= (246) 3. A mailing st mailing env a variety of 4 centimete Write and the perime (2x + 3) in a. Write and simplify an expression to represent the perimeter of Heather's scale model. 4. Find the perimete b. Find the perimeter of the model if x = 2:

Answer 1

Since a pentagon is 5 sided, the perimeter would be:

$5(2x+3)\rightarrow10x+15$

Using x = 2 , we would get:

$10(2)+15=20+15=35$