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Mathematics, 13.06.2020 07:57 kameronmouton

3. The total mass of Siti and her baby sister is 15.25 kg. The total mass of Siti and her mother is 72.25 kg. Siti's mother is 13 times as heavy as Siti's baby sister. What is Siti's
mass?

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3. The total mass of Siti and her baby sister is 15.25 kg. The total mass of Siti and her mother is...

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