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MatroZZZ [7]
3 years ago
15

Solve the system of equations by adding. Check your answer.

Mathematics
2 answers:
Inga [223]3 years ago
8 0
X= 5.333333333 + .8333333333y
Nonamiya [84]3 years ago
3 0
I hope it will help you

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Anuta_ua [19.1K]

Answer:

Step-by-step explanation:

The main idea is that I would like to pay less than what I'm expecting to win, so in that way, I get a profit out of playing this game. Let X be the number of tosses until I get a Heads. By definition, this is a geometric random variable with parameter p = 1/2.

Let Y the amount I received for playing. So, we want to calculate the expected value of Y.

We can calculate it as follows

E[Y] = 2 P(X=1)+ 4 P(X=2)+ 8 P(X =3)  + \dots  = \sum_{n=1}^infty 2^n P(X=n)

Since X is a geometric random variable, we have that P(X=n) = (\frac{1}{2})^{n-1}\frac{1}{2}

Then,

E[Y] = \sum_{n=1}^\infty 2^{n} (\frac{1}{2})^{n-1} \frac{1}{2} = \sum_{n=1}^\infty 2^{n-1} \cdot \frac{1}{2^{n-1}} = \sum_{n=1}^\infty 1 = \infty

So, we expect to have an infinite amount. Given this, we can pay as much as we want to play the game.

5 0
3 years ago
Adan bought a box of fruit that weighed 6 3/8 kilograms. if he bought a second box that weighed 7 2/5, what is the combined weig
leonid [27]
13 31/40
Explanation
6 3/8+7 2/5
6+7=13
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Use common denominator 6 15/40+7 16/40
15+16=31
5 0
3 years ago
How many types of congruence criterion are in total.Name them​
Makovka662 [10]

Answer:

Various types of Congruency are:

1. ASA (Angle Side Angle)

2. SSS (Side Side Side)

3. SAS (Side-Angle-Side)

4. AAS (Angle-Angle-Side)

5. RHS (Right angle-Hypotenuse-Side)

As of what I had learned (class 9) this is all but I am not sure if there are more

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3 years ago
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Simplify. 9 ÷ 3 + 8 • 5 – 2
kodGreya [7K]
This answer is 41
9 divided by 3
+8
x 5
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4 years ago
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Elsie would like to take snowboarding lessons at powder mountain. She has saved $550 for lessons and a junior season pass that c
vlabodo [156]
So, she has 550 dollars saved. If the junior season pass costs 315, you subtract that from 550. You should then have 235 dollars. Next, you divide 235 by 45 dollars per lesson, and you should get 5.22. You can't buy half a lesson, so she only has enough for 5 lessons. 
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4 years ago
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