2. In a cold storage chamber, the temperature drops 5.2C every 10 minutes. If the temperature is initially 19C, what is the temperature in the chamber after 1½ hours?
Important things we know :5.2°C down every 10 minutes. (x9 = 90 minutes)
Temperature is 19°C
19°C - (5.2°C x 9) = 19°C - 46.8°C
Therefore, the temperature in the cold storage chamber after 1½ hours is, -27.8°C