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A bag contains 30 marbles, 3 of which are blue, 20 are red, 5 are green, and 2 are purple. Emerson takes a marble out of the bag, records the color, and returns it to the bag. How many purple marbles should he expect after 300 trials? 20 30 50 200
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@pooja195 help if you can
Well, a chance of getting a purple once would be 2/30, so first, multiply 300 to 2, and 300 to 30.
300 x 2 = ?
tha would be 600
Yes, and 300 x 30 = ?
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9,000
is this right?
Yes, so make it a fraction.
600/900
You mean 9000.
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So yes, it is 600/9000. :)
|dw:1419266163336:dw| lol
Wait, but what would the answer be...?
30?
Yeah, I think.
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ok thx so much for your help. and you both are very nice
hi
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