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Mathematics 7 Online
OpenStudy (anonymous):

A bag contains 3 red marbles, 5 yellow marbles, and 4 blue marbles. One marble is chosen at random. What is the probability that the chosen marble will be blue? A.1/12 B.1/4 C.1/3 D.3/4

OpenStudy (misty1212):

HI!!

OpenStudy (misty1212):

it is the ratio of the number of blue marbles to the total number of marbles

OpenStudy (anonymous):

i think a

OpenStudy (misty1212):

how many blue marbles are there?

OpenStudy (anonymous):

C. 1/3

OpenStudy (anonymous):

cause if its 4/12 (4 blue marbles 12 marbles in total) reduce it to 1/3

OpenStudy (anonymous):

are you sure?

OpenStudy (misty1212):

lol

OpenStudy (misty1212):

how many blue marbles?

OpenStudy (anonymous):

yes. Im positive

OpenStudy (anonymous):

@fallengoddess

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