Answer:
3
Step-by-step explanation:
10x + y = 22 A
2x + y = -2 B
A - B left A - left B = Right A - Right B
10x + y - (2x + y) = 22-(-2)
10x + y -2x -y = 22 + 2
8x = 24
x = 24/8
x = 3
Answer:
sure whats the problem
Step-by-step explanation:
The 1st one should be larger
When two angles are a linear pair, the sum of their measures is 180°:
∡1 + ∡ 2 = 180°
Substituting the expressions for the angles, you get:
<span>5y − 8 + 12 + 6y = 180
Solve for y:
11y = 176
y = 176/11
Now, substitute this value in the expression for </span>∠2, which is the one we are interested in:
∡2 = 12 + 6y = 12 + 6×(<span>176/11) = 108°
When two angles are vertical angles, it means that they share the same vertex and they have the same measure, therefore:
</span>∡3 = ∡2 = 108°
Hence, the correct answer is <span>C) 108°. </span>