20120490 20120490

15-08-2022
Mathematics

contestada

What is the value of x?
1. 15
2. 21
3. 26
4. 105

What is the value of x 1 15 2 21 3 26 4 105 class=

Respuesta :

driftecook driftecook

15-08-2022

Answer is #2. = 21

Step by step

We can see angle 5x is a vertical angle to a 90 degree angle and 15 degree angle combined.
So we know vertical angles are congruent (the same) so we can use the equation
90 + 15 = 5x

Solve for x

105 = 5x
Divide both sides by 5 to solve for x.
21 = x

Problem solved

Answer Link

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