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VashaNatasha [74]

2 years ago

14

A bag contains: • 5 red marbles •6 blue marbles •3 green marbles •4 black marbles • 2 yellow marbles. A marble will be drawn fro

m the bag and replaced 100 times. What is a reasonable prediction for the number of times a green or black marble will be drawn?

1 answer:

podryga [215]2 years ago

3 0

Hi hi hi hi hi hi hi hi hi hi

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Answer:

$(-3, 0)$

Step-by-step explanation:

$\: \: \: 2x + 3y = - 6 \\ -2x + 3y = \: \: \: 6 \\ \frac{ + \: \: \: \: \: \: - \: \: \: \: \: \: = - }{ }{} \\ \: \: \: 4x \: \: \: \: \: \: \: \: \: \: \: \: = - 12 \\ \\ x = \frac{ - 12}{4} \\ \\ x = - 3$

now,

$-2( - 3) + 3y = 6 \\ 6 + 3y = 6 \\ 3y = 6 - 6 \\ 3y = 0 \\ y = \frac{0}{ 3} \\ y = 0$

thus, (-3, 0)

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