in july,the average temperature is one US city was 29C. by december ,the average temperture had fallien by 29C . Explain why the average temperture in dec was 0C
The temperature went up 29°C, which represents a positive 29. Then the temperature fell 29°C, which represents a negative 29. The average temperature rose and fell the same amount. The absolute values are the same, so the difference is 0.
First you want to have the two numbers and in this case they are the same so subtract them and you will either have a negative number or a solid number but in this case it would be zero because you are subtracting.
