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Oduvanchick [21]
3 years ago
10

There are 4 red and 8 blue marbles in a bag. Mark draws a blue marble out of the bag and does not replace it. Mark draws a secon

d blue marble out of the bag and does not replace it. What is the probability that the next marble he draws will also be blue? ​
Mathematics
1 answer:
Temka [501]3 years ago
8 0

Answer:

The chance of him pulling out another blue marble is 6/10 or 3/5

Step-by-step explanation:

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Solve linear equations -4(b+3)-12=2b-16+5b
daser333 [38]

Answer:

Exact form:b=-\frac{8}{11}\\Decimal form: b=-0.72727272727272727272

Step-by-step explanation:

-4(b+3)-12=2b-16+5b

-4b-12-12=2b+5b

-4b-24=7b-16

-4b=7b+8

3 0
3 years ago
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In finance the notion of expected value is used to analyze investments for which the investor has an estimate of the chances ass
blagie [28]

Answer:

Step-by-step explanation:

The expected return is given as

Expected Return = SUM (Return i x Probability i). i=1,2,3.....

First investment

Probability of 0.7, it returns 60cents per dollars

Second investment

Probably of 0.3, it loses 20cents per dollar.

Expected return=(0.7×60)-(0.3×20)

Excepted return= 42-6

Excepted return=36cents

To dollars, 1cents is 0.01dollars

Then, 36cents = 0.36dollars

Expected return=$0.36

7 0
3 years ago
WILL GIVE 5 STARS TO THE PERSON WHO HELPS WITH AN EXPLANATION!!! If the 32 ounce bottle is 20% more than the typical bottle, how
Aleks04 [339]
So if 32 oz is 20% more than the average bottle, you multiply 32 by .20 which gives you 6.4. This means that the 32 oz bottle is 6.4 oz more than the regular bottle. Furthermore, 32 - 6.4 = 25.6 so that's how big the typical bottle is.
3 0
2 years ago
Solve for j.
gavmur [86]

Answer:

( J - 6 ) × (J + 6 )

Step-by-step explanation:

j^2 -6^2

( J - 6 ) × ( j + 6 )

5 0
3 years ago
Is 0, 2, 4, 6, a arithmetic sequence
amid [387]
Yes, 0 + 2 = 2
2 + 2 = 4
4 + 2 = 6.
Since they're just ADDING 2, not MULTIPLYING by 2, it's arithmetic, not geometric.
6 0
3 years ago
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