In the figure below, angle y and angle x form vertical angles. Angle x forms a straight line with the 50° and the 40° angle. Write and solve an equation to determine the measure of angle y.

ANSWER:

As angle x are in straight line with some degrees.

So, ∠x + 40° + 50° = 180°

∠x + 90° = 180°

∠x = 90°.

And ∠x and ∠y are vertically opposite angles, so they must be equal.

Therefore, ∠x = ∠y = 90°.

answer: i guess 5 units?

step-by-step explanation: