Question

http://prntscr.com/dgao3t

Answer 1

Please think about this problem. What's the goal? What are some ways you might tackle this problem? Please invest some time and effort here, and then share what you have done. then someone can respond.

Answer 2

I don't know how to do it

Answer 3

I'm sure you know something about this. How many interior angles does this triangle have? Do you know that the sum of these interior angles must be 180 degrees?

Answer 4

Three and yes

Answer 5

Is it this 5y-10=180

Answer 6

@mathmale

Answer 7

The sum of all three angles must equal 180 degrees.

Answer 8

AC is the same length as CB. Therefore angle A is equal to angle B. That should help you find X.

Answer 9

180 = 50 + 2x + 5y + 10

(Knowledge given by @royalranger helps you know, you may construct this equation as "50 = 2x" to find the x value as well.)

Answer 10

You may plug in the x value you find from that resultant and receive a constant in which you can take away from 180 and leave you with a constant that equals the variable of 5y.
I may help you through this process if you wish.

Answer 11

x=25

Answer 12

Oh okay you may @Vuriffy

Answer 13

Yes.

180 = 50 + 2(25) + 5y + 10

Combine like terms.

All you must do now is add (50 + 50 + 10), what does that equal?

Answer 14

110

Answer 15

y=14

Answer 16

180 = 5y + 110 What do you think you do next? (You must isolate 5y).

Answer 17

180 = 5y + 110
Subtract 110
70 = 5y
divide by 5.
y = 14.
Yes, you are correct. Wonderful job.