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dennittap
08.07.2019 •
Mathematics
Julia has a bag containing p blue marbles and q red marbles. the ratio of blue to red is 2: 3. she adds r blue marbles. the ratio of blue to red marbles is now 2: 1 . what is the ratio between p and r?
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Ответ:
Ответ:
Ответ:
502509/13
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