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12345 [234]
3 years ago
8

A jar contains 3 red, 4 blue, and 2 white marbles. What is the probability that a marble drawn at random is not red?

Mathematics
2 answers:
raketka [301]3 years ago
8 0

Answer:

Probability that a marble drawn at random is not red = \frac{2}{3}.

Step-by-step explanation:

Given : A jar contains 3 red, 4 blue, and 2 white marbles.

To find  : What is the probability that a marble drawn at random is not red.

Solution : We have given that

Red marbles = 3.

White marbles = 2.

Blue marbles = 4

Total marbles = 9

Marbles that are not red = white + blue =2+4 = 6.

Probability that a marble drawn at random is not red = \frac{Number\ of\ marbles\ not\ red}{Total\ that\  number\ of\ marbles}.

Probability that a marble drawn at random is not red = \frac{6}{9}.

Probability that a marble drawn at random is not red = \frac{2}{3}.

Therefore, Probability that a marble drawn at random is not red = \frac{2}{3}.

sukhopar [10]3 years ago
6 0
2/3 is <span>the probability that a marble drawn at random is not red.</span>
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Answer:

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Step-by-step explanation:

Part A: (1,1) (7,5)

To determine the slope, you will use the equation m=(y2-y1)/(x2-x1). Keep in mind that it doesn't matter what point you use for (x1, y1) or (x2, y2).

Let's plug in the numbers for part a:

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m=6/4

And finally, we simplify:

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For these others, I will just go through the steps and not explain them, if you need help or don't understand something I'm doing, either look back at what I did for part a or comment on this answer.

Part B: (1,1) (5,7)

m=(5-1)/(7-1)

m=(4/6)

m=2/3

Part C: (2,5) (-1,2)

m=(-1-2)/(2-5)

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The same result can be obtained for f^-1(f(x))=x

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Step-by-step explanation:

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