Mathematics, 14.10.2019 01:10 mpete1234567890

The mean temperature for the first 7 days in january was 7 °c.
the temperature on the 8th day was 1 °c.
what is the mean temperature for the first 8 days in january?

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The mean temperature for the first 7 days in january was 7 °c.
the temperature on the 8th day...

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