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coldgirl [10]
3 years ago
15

How many blank pages remain

Mathematics
2 answers:
Ierofanga [76]3 years ago
5 0
B) 14. 

If you start with subtracting the 8 pages from 50, you get 42 remaining pages. Then it says 2/3 of the REMAINING pages so you divide 42 into thirds. 42/3=14. You want 2/3 of that, so you multiply the 14 by two to get 28 (it's like there are three piles of 14 pages and you want only 2 out of the three piles). So now you've used 28 pages + the original 8. You've used a TOTAL of 36 pages. Subtract 36 from 50 and you get 14 left. 
jek_recluse [69]3 years ago
5 0
Sorry if I am wrong, but I think it is B
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Answer:

The expected value of this game is -$0.26.

Step-by-step explanation:

Expected value:

Each possible earning/loss multiplied by it's probability.

Probability:

Number of desired outcomes divided by the number of total outcomes.

In this question, the order in which the numbers are chosen is not important. So we use the combinations formula to solve.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

Probability of winning:

Desired outcomes:

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Total outcomes:

6 numbers from a set of 21. So

T = C_{21,6} = \frac{21!}{6!15!} = 54264

Probability:

p = \frac{1}{54265}

Expected value

\frac{1}{54265} probability of earning 40,000.

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7 0
3 years ago
What is the volume of the rectangular prism.
Pie

Answer:

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\frac{3}{-2}

5 0
2 years ago
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Answer:

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take 2 from 3 and put that on top.

Solution 1/2-1/3= 3/6-2/6= 1/6

5 0
3 years ago
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