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Mathematics 9 Online
OpenStudy (anonymous):

find the chance of drawing two blue balls in succession-from a bag containing 5 red and 7 blue balls, if the balls are not being replaced

OpenStudy (anonymous):

details plez

OpenStudy (perl):

well there are 12 balls in all, and you want to choose a blue ball, so there are 7 chances at first. once you choose a blue ball, you have taken away a ball, so there are 11 balls left , and 6 blue balls left

OpenStudy (perl):

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