Answer:
The answer to your question is: 29 tickets for children and 58 tickets for men.
Step-by-step explanation:
Child = c = $ 5.50
Adult = a = $8.80
Equation
a = 2c
5.5c + 8.8a = 669.9
5.5c + 8.8(2c) = 669.9
5.5c + 17.6c = 669.9
23.1c = 669.9
c = 669.9 / 23.1
c = 29
a = 2(29)
a = 58
Since a triangles angles add up to 180 you would add the other sides and then
180-161=19
So angle 1 is 19 degrees
Answer:
y= -11
Step-by-step explanation:
After rearranging equation 2, we get x= y+3/2
Sub it into equation 1
y= 3(y+3/2) + 1
y= 3y+9/2 + 1
y= 3y + 11 / 2
2y = 3y + 11
-y = 11
y = -11
The answer to the question would be 455
