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12 July, 00:58

A bag has 7 red marbles, 8 blue marbles, and 5 purple marbles. Rachel draws a marble from the bag without looking.

What is the probability that Rachel draws a blue marble?

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  1. 12 July, 04:46
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    First you would add all the marbles together because you need to know how many are in the bag in total.

    7 + 8 + 5 = 20

    Next you simply put the number for blue over the total

    8 / 20

    And there's your answer.
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