Answer: 40 degrees
Step-by-step explanation:
The 3 angles of a triangle must add up to 180 degrees.
Let's say this is triangle ABC and angle A has a measure of 100 degrees.
That leaves 80 degrees to be split evenly between angles B and C.
80/2 = 40, so angles B and C must each be 40 degrees.
Answer:
x = 1 and y = -3
Step-by-step explanation:
Subtract eqn 1 from eqn 2
11y = - 33
y = -3
Substituting y into eqn 2...
10x - 2(-3) = 16
10x +6 = 16
10x = 10
x = 1