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Tom doesn't really want to give away blue marbles and would like to change the probability that he chooses a blue marble to 1/10.How many marbles that are not blue could he add to the bag so that the probability of choosing a blue marble becomes.

Sagot :

Secretlybluid
he would need to add 36 non blue marbles to the bag. 

[tex] \frac{4}{40}= \frac{1}{10} [/tex]  this is true because when you can divide 4 into the top and bottom evenly giving you this equivalent.