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

the room temperature 10 hours after the process begins will be 50 degree Celsius.

explanation :--


1 hrs = 5 degree Celsius
therefore,10 hrs = ( 10 × 5 ) degree Celsius
= 50 degree Celsius

Answer 2

Given:

A certain freezing process requires that room temperature be lowered from 40°C at the rate of 5°C every hour$.$

To find:

What will be the room temperature 10 hours after the process begins?

STEP BY STEP EXPLANATION:

Initial temperature 40°C

Change in temperature per hour = -5°C

Change in temperature after 10 hours = (-5) x 10 = -50°C

Final temperature = 40°C + (-50°C) = -10°C

∴ the room temperature will be -10°C after 10 hours

Hence verified !