Question

So what is was the temperature on the 5th day?

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.

Answer 1

Answer:

We are told that the mean temperature for the first 4 days in January was -2°C. The mean temperature for the first 5 days in January was -3°C.

Now we will find sum of temperatures on first four days of January by multiplying 4 by -2.  

Now let us find sum of temperature on first 5 days of January.

Now we will subtract -8 from -15 to find temperature on the 5th day of January.

 

Therefore, temperature on the 5th day of January was -7c

Step-by-step explanation:

Hope this helps:)  ジョセフ