Question

A certain freezing process requires that room temperature be lowered from 40°C at the rate of 5°C every hour what will be the room temperature 10 hours after the process begins.

Answer 1

Answer:

-10°C

Step-by-step explanation:

Given,

The rate of decrease in temp. is 5°C every hr.

 The room temp. after 10 hrs. = 40°C - 5°C X 10

                                                  = 40°C - 50°C

                                                  = -10°C

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