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Tom keeps all of his favorite marbles in a special leather bag right now five red marbles four blue marbles and three yellow marbles re in the bag tom doe not really want to give away the blue marbles and would like to change the probability that hes chooses a blue marbel to 1/10 how many marbles that re not blue could he add to the bag so that the probability of choosing blue marble becomes 1/10

Respuesta :

Tom needs to add 28 non blue marbles in order to make the probability 4/40 which reduces to 1/10

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