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

For every hour 5°C is lowered. For ten hours 50°C will be lowered.
Subtract 50 from 40.  40 - 50 = -10°C is the room temperature after 10 hours.


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