1. The temperature of a substance decreases at the rate of 2°C per 10 minutes. The temperature of the substance at 5 o'clock was 10°C. At what time will the temperature of the substance be 4°C below zero?
2. The temperature of a room is 4°C and outside temperature is 36°C. If the temperature of the room increases at the rate of 4°C per 30 minutes, how much time will it take to reach the outside temperature?
Answers
Answered by
1
Answer:
Answer1. For every 10 mins, there is a drop of 2 degree Celsius. So 70 minutes will be required for the substance to reach -4 degree Celsius
2 4 hours
Step-by-step explanation:
Similar questions