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The mean temperature for the first 4 days in January was -6°C. The mean temperature for the first 5 days in January was -5°C. What was the temperature on the 5th day?

 Jun 4, 2023
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- 6  x  4 days ==- 24

- 5  x  5 days == - 25

 

- 25 - ( - 24) == - 1 - temperatue on the 5th day.

 Jun 5, 2023

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