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Ksenya-84 [330]
3 years ago
11

Hey can i have some help real quick?

Mathematics
1 answer:
Alenkasestr [34]3 years ago
4 0

Answer:

the first one

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Joshua has a bag of marbles. In the bag are 5 white marbles, 3 blue marbles, and 7 green marbles. Peter randomly draws one marbl
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Answer:

1 / 5

Step-by-step explanation:

Given that:

Number of white marbles = 5

Number of blue marbles = 3

Number of green marbles = 7

Required is the approximate probability of drawing 2 green marbles, Note that drawing is done without replacement :

Probability = required outcome / Total possible outcomes

Total possible outcomes = sum of all marbles = (5 + 3 + 7) = 15 marbles

First draw:

P(Green) = 7 / 15

Second draw:

Required outcome = 7 - 1 = 6

Possible outcomes = 15 - 1 = 14

P(green) = 6 / 14

Probability of drawing out two green marbles :

(7/15 * 6/14) = 42 / 210 = 1 / 5

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3 years ago
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Answer:

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Step-by-step explanation:

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The letters from the word "alert" are used to form a password into a school computer system. How many 5-letter passowrds can be
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