Question

A certain freezing process requires that room temperature be lowered by 40 °C at the rate of 5°C every hour . What will be the room temperature 10 hors after the process begin​

Answer 1

Answer:

Step by Step Explanation:

Given: Present room temperature = 40°C Decreasing the temperature every hour = 5°C Room temperature after 10 hours = 40°C + [10 x (–5°C )] = 40°C – 50°C = – 10°C Thus, the room temperature after 10 hours is – 10°C after the process begins.

Answer 2

Step-by-step explanation:

Find the temperature change in 10 hours:

1 hour = 5ºC

10 hours = 5 x 10 = 50ºC

Find the temperature after 10 hours:

Initial temperature = 40ºC

Final temperature = 40 - 50 = - 10ºC

Answer: The temperature will be -10ºC

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