Mathematics, 26.06.2020 18:01 qwertylol12345

Please help. Will give brainliest, five stars, thanks and 10 points. At a nursery, the mean age of 4 children is 31 months. Katy joins the nursery. The mean age of all 5 children is now 30 months. Work out the age of Katy.

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Please help. Will give brainliest, five stars, thanks and 10 points. At a nursery, the mean age of 4...

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