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Mathematics 9 Online
OpenStudy (anonymous):

7th grade question easy will fan and medal - http://gyazo.com/9db4f5606163f5bd9d9b809bb49386c2

OpenStudy (anonymous):

What proportion of the marbles have been black?

OpenStudy (anonymous):

B

OpenStudy (anonymous):

B BTW i'm also doing 7th grade math

OpenStudy (anonymous):

50 marbles have been drawn, and they've all been put back in the bag. Of those 50, 30 were black. This suggests that 3/5 of the marbles in the bag are black. So if you drew another marble, you would expect a 3/5 chance that the marble would be black.

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