The answer is option "3, 40".
<span>m∠cab = 2x
m∠acb = x + 30
m∠cbd = 5x − 50
Now,
</span>m∠cab + m∠acb = m∠cbd
2x+x+30 = 5x-50
2x+x-5x = -50-30
-2x = -80
x = 40
5x+10y=4750
x+y=600
x=250
y=350
250 theater tickets
350 orchestra tickets
Answer: it is definitely c. y=3x+2
Step-by-step explanation: solve the first equation and then plug in
Answer: (5, -2)
Step-by-step explanation:
Substitute x-7 for y in 2nd equation
Solve for y