Suppose a thermometer has marks at every one degree increment and the mercury level on the thermometer is exactly between the 25 and 26 degree Celsius marks. How should we properly report the temperature?

25.5 degrees C

To properly report the temperature of the thermometer, we need to consider the position of the mercury level. In this case, the mercury level is exactly between the 25 and 26 degree Celsius marks.

Since the thermometer has marks at every one-degree increment, we can conclude that the mercury level is halfway between 25 and 26 degrees.

To calculate the exact temperature, we take the average of the two nearest marks. Adding 25 and 26 together, we get 51. Dividing 51 by 2, we get 25.5.

Therefore, the proper way to report the temperature would be 25.5 degrees Celsius.

To properly report the temperature on the thermometer, we should use the following format: 25.5 degrees Celsius.

Since the thermometer has marks at every one-degree increment, the space between the 25 and 26-degree marks represents half a degree. Therefore, the mercury level being exactly between these marks indicates a temperature that is halfway between 25 and 26 degrees Celsius, which is 25.5 degrees Celsius.