Question

What is the value of y ?
A. 30
B. 50
C. 60
D. 40

Answer 1

From what I can c it should be c, please feel free to let me know if that’s as wrong so I can learn it correctly as well dear

Answer 2

In a triangle, the sum of interior angles is 180 degrees. So, to solve for y we can set up an equation for all of the angles

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

From there, you can simplify it by combining like terms

3y + 60 = 180

Subtracting 60 from each side

3y = 120

And then dividing both sides by 3

y = 40

Meaning that the answer is D.