Question

A certain freezing process requires that room temperature be lowered from 45°C at the rate of 5°C

every hour. If the process begins at 1:00 pm, then at what time temperature becomes 0°C?​

Answer 1

Answer:

wait.................

Answer 2

Answer:

Given: Present room temperature = 45°C Decreasing the temperature every hour = 5°C Room temperature after 10 hours = 45°C + 9 x (–5°C ) = 45°C – 45°C = 0°C Thus, the room temperature after 9 hours is 0°C