To calculate the temperature after 10 hours, we first need to understand the reduction process. The starting temperature is 40, and it reduces at a rate of 5 units per hour.
After 10 hours, the total reduction in temperature would be:
- Reduction rate: 5 units/hour
- Time: 10 hours
- Total reduction = 5 units/hour * 10 hours = 50 units
Now, we subtract the total reduction from the initial temperature:
- Initial temperature: 40
- Final temperature = Initial temperature – Total reduction
- Final temperature = 40 – 50 = -10
Therefore, after 10 hours, the temperature would be -10 degrees.