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:

Room temperature has to be lowered 5°C every hour meaning that every hour the room temperature will be lowered 5°C so in 10 hours the room temperature will be 5*10 (5 added 10 times) which is 50°C .The current room temperature is 40°C so the room temperature after 10 hours will be 40-50 = -10 resulting in the answer -10°C.