Mathematics
Mathematics, 21.04.2020 15:49, peteh5

The average mass of a group of adults is 72 kg. Four-ninths of the adults are men, and the rest are women. The average mass of the men is 82 kg. What is the average mass of the women

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The average mass of a group of adults is 72 kg. Four-ninths of the adults are men, and the rest are...

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