Question

Find the value of each variable! Help pls!!!

Answer 1

x = 103

Explanation:

This polygon has 5 sides, which means we need to find a number to write an algebraic expression to solve for x.

We can use the formula
`S = (n-2)*180` where n = the number of sides. All we have to do is plug in 5 and evaluate.

`S = (5-2)*180`

`S=3*180`

`S=540`

Now that we have our answer, we just have to create an equation so we can solve for x.

`x+100+117+105+115=540`

Add like terms

`x+437=540`

Subtract 437 on both sides

`x=103`

To prove if our answer is correct, we can add up all the sides together to see if they add up to 540.

`103+100+117+105+115=540`

They add up to 540, so our answer is correct.