wolfy3355
contestada

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

Respuesta :

watwolves8855

Answer:

-12 degrees.

Step-by-step explanation:

We remember that to calculate the average, we must add all values, then divide by the amount of values.

This means the first 4 days sum to -8 while the first 5 days sum to -20. Therefore, on the fifth day, the temperature was -12 degrees.

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