Answer:
x = 28
Step-by-step explanation:
The sum of the angles in a straight angle = 180°
Sum the angles and equate to 180
2x + 20 + 3x + 20 = 180
5x + 40 = 180 ( subtract 40 from both sides )
5x = 140 ( divide both sides by 5 )
x = 28
Answer: -204
Step-by-step explanation: 12 X -17 +Y is the same thing but you can say it this way and its easier to understand but it equals -204/(negative 204) Hope this helps you! :3
I will set it up for you only.
Let a = adult tickets
Let s = student tickets
Here is your system of equations:
a + s = 800
12a + 8s = 7500
x + 4 = 3x - 8, is assuming D is the midpoint, and therefore ED = DB.
all we know is that D is <u>somewhere</u> in EB.
![\bf E\stackrel{x+4}{\rule[0.35em]{17em}{0.25pt}}D\stackrel{3x-8}{\rule[0.35em]{10em}{0.25pt}}B \\\\\\ EB=ED+DB\implies EB=(x+4)+(3x-8)\implies EB=4x-4](https://tex.z-dn.net/?f=%5Cbf%20E%5Cstackrel%7Bx%2B4%7D%7B%5Crule%5B0.35em%5D%7B17em%7D%7B0.25pt%7D%7DD%5Cstackrel%7B3x-8%7D%7B%5Crule%5B0.35em%5D%7B10em%7D%7B0.25pt%7D%7DB%0A%5C%5C%5C%5C%5C%5C%0AEB%3DED%2BDB%5Cimplies%20EB%3D%28x%2B4%29%2B%283x-8%29%5Cimplies%20EB%3D4x-4)