Question

a certain freezing process requires that room temperature to be lowed from 40 degree Celsius at the rate of 5 degree Celsius every hour , what will be the room temperature at 10 hours after the process begins​

Answer 1

Answer:

The room temperature 10 hours after lowering from 40°C at the rate of 5°C every hour is -10°C.

If we keep lowering the given temperature by 5°C every hour from the initial temperature of 40°C, the temperature will decrease every hour.

Explanation:

☆ Since there is a decrease in temperature by 5°C every hour, let's first find the total decrease in 10 hours:

or, 10 × 5 = 50°C.

☆ This means that after 10 hours, there is going to be a decrease in temperature by 50°C.

Since 'decrease' refers to the subtraction operation, let's find the total decrease in temperature from the initial temperature of 40°C as:

or,  40 - 50 = -10°C.