Please take a full picture. I can see the graph but I don’t know what it asks for.
Answer: Choice B
Work Shown:
![-2 \le 2x-4 < 4\\\\-2+4 \le 2x-4+4 < 4+4\ \text{ ... add 4 to all sides}\\\\2 \le 2x < 8\\\\2/2 \le 2x/2 < 8/2\ \text{ ... divide all sides by 2}\\\\1 \le x < 4\\\\](https://tex.z-dn.net/?f=-2%20%5Cle%202x-4%20%3C%204%5C%5C%5C%5C-2%2B4%20%5Cle%202x-4%2B4%20%3C%204%2B4%5C%20%5Ctext%7B%20...%20add%204%20to%20all%20sides%7D%5C%5C%5C%5C2%20%5Cle%202x%20%3C%208%5C%5C%5C%5C2%2F2%20%5Cle%202x%2F2%20%3C%208%2F2%5C%20%5Ctext%7B%20...%20divide%20all%20sides%20by%202%7D%5C%5C%5C%5C1%20%5Cle%20x%20%3C%204%5C%5C%5C%5C)
This says that x is between 1 and 4; it can equal 1, but it can't equal 4.
To visually represent this, we'll have a closed circle at 1, an open circle at 4, with shading in between these circles. This is represented by graph B.
(0.5 • x to the fourth power) + 3.5+ 18
Or 21.5 + (0.5 • x to the fourth power)
Answer:
42 child and 70 adult
Step-by-step explanation:
Let a = number of adult tickets
c = number of child tickets
a+c = 112
2.25a + 1.75c = 231
Solve the first equation for a
a = 112-c
Substitute this into the second equation
2.25(112-c) + 1.75c = 231
Distribute
252 - 2.25c +1.75c = 231
Combine like terms
252 -.5c = 231
Subtract 252 from each side
252-252 -.5c = 231-252
-.5c = -21
Divide each side by -.5
-.5c/-.5 = -21/ -.5
c = 42
Now can find a
a = 112-c
a = 112-42
a = 70