07-11-2020
Mathematics

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The mean temperature for the first 4 days in January was -3°C.
The mean temperature for the first 5 days in January was -2°C.
What was the temperature on the 5th day?

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07-11-2020

Answer:

2°C

Step-by-step explanation:

5 × ( - 2 ) - 4 × ( - 3 ) = - 10 + 12 = 2

The temperature on the 5th day is 2°C .

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