A pentagon has side lengths: (12 + 4x), (10 + 8x), (15 + 3x), (9 + 2x), and (14 + 3x). Write a simplified expression that represents the perimeter of the pentagon. Explain.

Answer :

Given the side lengths of a pentagon:

(12 + 4x), (10 + 8x), (15 + 3x), (9 + 2x), and (14 + 3x)

A pentagon is a polygon that has 5 sides

To find the perimeter of a pentagon, sum up the lengths of all the sides.

Thus, the perimeter of the pentagon is:

P = (12 + 4x) + (10 + 8x) + (15 + 3x) + (9 + 2x) + (14 + 3x)

Let's simplify the expression.

Remove the parenthesis:

P = 12 + 4x + 10 + 8x + 15 + 3x + 9 + 2x + 14 + 3x

Combine like terms:

P = (4x + 8x + 3x + 2x + 3x) + (12 + 10 + 15 + 9 + 14)

P = 20x + 60

Therefore, the simplified expression that represents the perimeter of the pentagon is:

20x + 60

ANSWER:

20x + 60

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