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Iteru [2.4K]
2 years ago
15

A bag contains 4 blue marbles, 5 green marbles and 3 yellow marbles. How many blue marbles should you add to the bag so that the

probability of drawing a marble is 0.80
Mathematics
1 answer:
Nadusha1986 [10]2 years ago
4 0

Answer:

ADD 28 blue marbles.  Added for total of 32/40= 0.80

Step-by-step explanation:

4/12 or 1/3 (33%) for original amount

X/X+8=.8

X=.8 x (X+8)

X=

<u>Sorry </u>I do not remember how to complete this equation so did it by substituting numbers until solution was .80

Need a total of 32/32+8 (40)  =0.8  or 80% chance

So need to add

28 blue marbles.

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The probability that a 25-year-old female in the U.S. will die within one year is about 0.000514. An insurance company is prepar
zhannawk [14.2K]

Answer:

Step-by-step explanation:

Expected payment= 0.000514*55000= 28.27

which would round to 29

6 0
2 years ago
How many numbers of possible live card hands (hands in five-card poker) drawn without replacement from a standard deck of 52 pla
makkiz [27]

The combination shows that the numbers of possible live card hands drawn without replacement from a standard deck of 52 playing cards is 2,598,960.

<h3>How to explain the information?</h3>

A permutation is the act of arranging the objects or numbers in order while combinations are the way of selecting the objects from a group of objects or collection such that the order of the objects does not matter.

Since the order does not matter, it means that each hand is a combination of five cards from a total of 52.

We use the formula for combinations and see that there are a total number of C( 52, 5 ) = 2,598,960 possible hands.

Learn more about permutations and combination on:

brainly.com/question/4658834

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3 0
2 years ago
Translate this sentence into an equation.<br> 108 is the product of Carlo's age and 6.
NeTakaya

Answer:

Step-by-step explanation:

Let Carlo's age =  x

Equation: 6*x = 108

               6x = 108

Solution:

6x = 108

x = 108/6

x = 18

Carlo's age = 18 years

8 0
2 years ago
Read 2 more answers
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nignag [31]
I think it’s the fourth one!!
6 0
3 years ago
Simplify the following: 3(-3 + 5x) -1 (4 - 4x)
Gnesinka [82]

3(-3 + 5x) -1 (4 - 4x)

Simplify each term by first using the distributive property with each set of parenthesis:

3*-3 + 3*5x - 1*4 -1* -4x

Now do the multiplications:

-9 + 15x -4 + 4x

Combine like terms

15x +4x - 9 -4

19x - 13

8 0
3 years ago
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