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Travka [436]
3 years ago
6

Helen has a box of marbles. Of the marbles are yellow. Of the marbles are red. The rest of the marbles are blue. Helen pulls one

marble out of the box at random, records its color, replaces it, and mixes up the marbles again. If she does this 200 times, how many blue marbles should she expect to pull out?
Mathematics
1 answer:
ira [324]3 years ago
4 0

Answer:

what are the numbers of the red and yellow marbles

Step-by-step explanation:

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Step-by-step explanation:

2x+y=4                  4x+2y=8

2x     =/2                     2y= /2

y=2                          4x=4

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Volgvan

Answer:

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Step by step

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