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Mathematics, 23.09.2019 05:50 harris435942
Abox contains 20 red marbles and 30 blue marbles. a second box contains 10 white marbles and 40 black marbles. if you choose one marble from each box without looking, what is the probability that you get a blue marble and a black marble?
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Abox contains 20 red marbles and 30 blue marbles. a second box contains 10 white marbles and 40 blac...
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