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Dmitry_Shevchenko [17]
3 years ago
5

A bag contains 7 red marbles, 2 blue marbles and 5 green marbles. If two marbles are drawn out of the bag, what is the probabili

ty, to the nearest 10th of a percent, that both marbles drawn will be blue?A bag contains 7 red marbles, 2 blue marbles and 5 green marbles. If two marbles are drawn out of the bag, what is the probability, to the nearest 10th of a percent, that both marbles drawn will be blue?
Mathematics
1 answer:
yaroslaw [1]3 years ago
5 0

Answer:

1.2%

Step-by-step explanation:

List all the possible pairs and divide 1 by the sum.

Since there were 86 possible pairs,

1/86 is nearly equal to o.o12

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We get a false equation as 145 and 100 are two different values. So the original equation is false when (a,b,c) = (8,9,10)

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Contrast this with something like choice A where we have a = 3, b = 4, c = 5 leading to

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