Can some one please help me with this im having trouble. ?

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31-12-2014
Mathematics

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Can some one please help me with this im having trouble. ?

Sagot :

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apologiabiology apologiabiology · Answer 1 · 2014-12-31T20:52:54-05:00

apologiabiology apologiabiology

31-12-2014

so 12=total
7=blue
black=total-blue=12-7=5
black=5

1. 2/3 of 12 were taken out or 24/3 were taken out or 8 marbles were taken out
there is not enough info becasue it doesn't specify which ones were taken out

2. there is not enough info

3. not chosen=total-chosen=12-8=4 so 4 were chosen

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