gft5fttrrtt gft5fttrrtt
  • 16-10-2020
  • Biology
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A jar contains 200 marbles total. Some are black. If you pull 4 marbles out and 1 is black, how many out of the 200 marbles would you guess are black?

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fcnguyen fcnguyen
  • 16-10-2020
Out of 200 marbles, there are 40 black marbles
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