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

1 thought on “<br />6. A certain freezing process requires that room temperature be lowered from 40°C at<br />the rate of 5°C every hour. What w”

1. Answer:

   Step-by-step explanation:

   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.

   Therefore, the room temperature 10 hours after the process begins is -10°C.

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