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Mathematics, 15.01.2021 19:40 fowers7187

A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for every 4 white marbles. How many blue marbles are in the bag?

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A bag contains 150 marbles. Some are blue, and the rest are white. There are 21 blue marbles for eve...
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