# The regular pentagon have a perimeter of 18.8 units. What is the value of X?

## Your going to make your equation like:

X-3=18.8/5

/ means divide*

Then divide 18.8 and 5 which gets you 3.76

Plus 3 away from 3 to cross 3 out but add 3 to 3.76 which gives you 6.76

X=6.76

## X - 3 = 18.8/5 ( 5 is how many sides of a pentagon)

Your going to multiply both sides of the equation by 5, one the left side the expression should be 5x - 15 on the right 18.8 ( since the two 5s cancel each other out), then opposite operations add 15 on both sides, left d two 15 cancel out so just 5x is left, on right it should add up to 33.8( 5x = 33.8) Then divide by 5 on both sides . X = 6.76

## •Givens

A regular pentagon has 5 sides.

Perimeter = 18.8

Each side labelled = x-3

The equation is…

5(x-3) = 18.8

Distribute 5 into x and 5 into -3

5x-15 =18.8

+15 +15

Add each side by 15.

-15+15 cancel each other out.

Leaving us with 18.8+15 which is 33.8

We take our 5x from earlier and drop down 33.8

5x = 33.8

Now divide each side by 5 to get variable ‘x’ by itself.

(/)- Division

5x/5 = 0

33.8/5 = 6.76

x=6.76

## also on the bottom of the pentagon it says x-3 how do you solve it

## What does x represent?

## To find the value of X, we need to understand how the perimeter of a regular pentagon is calculated.

A regular pentagon is a polygon with five equal sides. So, if we let X represent the length of each side of the pentagon, the perimeter can be expressed as:

Perimeter = 5 * X

Given that the perimeter of the pentagon is 18.8 units, we can set up the equation as follows:

18.8 = 5 * X

Now, to find the value of X, we can solve this equation by dividing both sides by 5:

18.8 / 5 = X

This simplifies to:

3.76 = X

Therefore, the value of X is 3.76 units.