Answer:
1 out of ever PUPILS need support
Step-by-step explanation:
4/24=1/6
Using the expected value, it is found that you should charge $4 to have a fair game.
------------------------
- A probability is the <u>number of desired outcomes divided by the number of total outcomes</u>.
- The expected value is the <u>sum of each outcome multiplied by it's respective probability</u>.
- When you roll two dice, there are
possible outcomes. - We suppose a cost of x.
- In 6 of them, the sum is 7: (1,6), (2,5), (3,4), (4,3), (5,2) and (6,1).
- Thus,
probability of earning a profit of 12 - x.
- 2 of them have sums of 2 or 12, which are (1,1) and (6,6).
- Then,
probability of earning a profit of 36 - x.
- If the outcome is any of the remaining 28, the player loses, thus
probability of losing x.
- The game is fair if the <u>expected value is 0</u>, then:
![\frac{6}{36}(12 - x) + \frac{2}{36}(36 - x) - \frac{28}{36}x = 0](https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B36%7D%2812%20-%20x%29%20%2B%20%5Cfrac%7B2%7D%7B36%7D%2836%20-%20x%29%20-%20%5Cfrac%7B28%7D%7B36%7Dx%20%3D%200)
![\frac{6(12 - x) + 2(36 - x) - 28x}{36} = 0](https://tex.z-dn.net/?f=%5Cfrac%7B6%2812%20-%20x%29%20%2B%202%2836%20-%20x%29%20-%2028x%7D%7B36%7D%20%3D%200)
![72 + 72 - 36x = 0](https://tex.z-dn.net/?f=72%20%2B%2072%20-%2036x%20%3D%200)
![36x = 144](https://tex.z-dn.net/?f=36x%20%3D%20144)
![x = \frac{144}{36}](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%7B144%7D%7B36%7D)
![x = 4](https://tex.z-dn.net/?f=x%20%3D%204)
A value of $4 should be charged.
A similar problem is given at brainly.com/question/24855677
Answer:
a and c are the correct answers
brainliest please
Step-by-step explanation:
simplify each equation and look for ones which solve to a simple numeric equality:
First equation solves to -3/7=-18/42...take a 6 from 18 and 42, and you get -3/7. -3/7=-3/7 which is true - that means that, no matter what value is inserted for x, a true equation will result = infinite number of solutions
Second equation simplifies to 3x=-30. Nope
Third equation simplifies to -18=-18 = infinite number of solutions
Fourth eq: 5=-7/2 = No solution
5th eq: 6.2x=-3.5-16.2 = nope
A converse statement is a statement that means, if B is equal to A, then A is equal to B. Based on this theory, the converse of the statement given in the question has to be written. "If an angle measures 90 degrees, then it is a right angle". I hope that this is the answer that has actually come to your help.
Answer:
1175/954 there your answer