Algebra

A box contains 5 yellow balls, 3 blue, and 1 red ball. Two balls are drawn at random. Find the probability that the two balls are yellow

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asked by vivian
  1. started with 9 balls, five of them are yellow
    5/9
    then we have 8 balls, four of them are yellow
    1/2
    so
    5/9 * 1/2 = 5/18

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    posted by Damon

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