vinnyl3 vinnyl3
  • 12-03-2017
  • Mathematics
contestada

12. If Zoey has a bag of marbles containing 18 red marbles, how many blue marbles should she add to the bag so that the probability of her drawing a blue marble from the bag is \frac{1}{4}
1
4
?

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Аноним Аноним
  • 16-03-2017
she should add six blue marbles

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