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Mathematics 8 Online
OpenStudy (anonymous):

A bag contains four red marbles, three green marbles, two blue marbles, and six yellow marbles. If Lisa draws a random marble from the bag, what is the probability that it will be a red, green, or blue marble?

OpenStudy (bibby):

add the probability of getting red, green, and blue marbles

OpenStudy (anonymous):

7/15 @bibby ?

OpenStudy (bibby):

I got 9/15. 4+3+2

OpenStudy (anonymous):

what is that simplified?

OpenStudy (anonymous):

2/5?

OpenStudy (anonymous):

3/5?

OpenStudy (bibby):

divide both by 3, 3/5 looks right

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