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vlabodo [156]
3 years ago
7

Please help please please help please

Mathematics
1 answer:
slava [35]3 years ago
5 0
10%

This is because the original probability of getting a green marble is 1/3. There are 7 green marbles out of 21 which simplifies to that ratio. 

The second probability is 3/10 since there will be 6 green marbles left out of 20 total marbles. This simplifies to that ratio. 

Now we multiply the two ratios together. 

1/3 * 3/10 = 3/30 or 1/10, which is equal to 10%
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