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Irina-Kira [14]
2 years ago
13

Any cookie jar 1/4 of the cookies or chocolate chip and 2/3 of the rest are peanut butter what fraction of all the cookies peanu

t butter
Mathematics
1 answer:
CaHeK987 [17]2 years ago
5 0

Answer:

3/12

Step-by-step explanation:

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Which phrase represents 3y+9​
sweet [91]

Answer:

9 more than 3 times y; first option

Step-by-step explanation:

3y is 3 times y, and +9 represents 9 more.

8 0
2 years ago
Read 2 more answers
a) expected value of a die b) suppose you play a game where you get a dollar amount equivalent to the number of dots that show u
UkoKoshka [18]

Answer:

a) The expected value of a die is 3.5

b) The fair value of this game is 4.25 dollars

c) The fair value of this game is 4.6667 dollars

Step-by-step explanation:

a) All the values are equally likely, so to get the expected value of the die we just sum all possible values and divide by the total amount of possible values, 6.

\frac{1+2+3+4+5+6}{6} = 3.5

Thus, the expected value of a die is 3.5.

b) The fair value is the expected value of the game. You will reroll the dice only if you expect to get more value on the second throw than what did you obtain on the first one. Since the expected value of a die is 3.5, then you will only reroll the die if you obtain 3 or less, and the probability for that is 1/2.

This means that there is a probability of 1/2 to make a second roll, with expected value 3.5, and a probability of 1/6 to obtain each of 4, 5 or 6 with the first die and keep that value (because it is higher than the expected value from one dice). Therefore, the expected value of this game is

1/2 * 3.5 + 1/6 (4+5+6) = 4.25

The fair value of the game is 4.25 dollars.

c) You can interpret this game as if after your first roll, you can keep that value or play the game described in b, where you roll once and reroll once if you want. Thus, if you decide to decline the value of the first die and reroll, then the expected value of the game will be 4.25. As a result, you will only reroll if you obtain a 4 or lower in the first die, which happens with a probability of 4/6 = 2/3. If you obtain 5 or 6, which happen each case with probability 1/6, you will keep that value because it exceeds your expectations. As a consecuence, the expected value is

2/3 * 4.25 + 1/6*(5+6) = 14/3 = 4.6667

The fair value of the game is 14/3 = 4.6667 dollars.

7 0
3 years ago
9 in<br> 4 in<br> What is the length of the hypotenuse? If necessary, round to the nearest tenth.
lina2011 [118]

Answer:

9.8in

Step-by-step explanation:

i think this right

6 0
3 years ago
Solve 3x + 23 + x = 7. x = −4 x = 4 x = −0.25 x = 0.25
Maksim231197 [3]
<h2>______________________________</h2><h2>Solve for x | Solution and Explanation </h2>

______________________________________________

Hello! So...

We are given the following:

Solve for x.

3x+23+x=7

====================

1. Group the like terms.

  • 3x+x+23=7

====================

2. Add similar elements (3x+x=4x).

  • 4x+23=7

====================

3. Subtract 23 from both sides.

  • 4x + 23 - 23 = 7 - 23

====================

4. Simplify.

  • 4x=-16

====================

5. Divide both sides by 4.

  • \frac{4x}{4} =\frac{-16}{4}

====================

6. Simplify.

  • x=-4 (aka. Option A)

====================

Hope this helps!

3 0
1 year ago
Idek the answer please help
VashaNatasha [74]

Answer:

A.

Step-by-step explanation:

4 0
2 years ago
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