SOLUTION: A certain process requires that room temperature be lowered from 40 degrees Celsius at the rate of 5 degrees Celsius every hour.What will be the temperature temperature 10 hours a

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Question 895033: A certain process requires that room temperature be lowered from 40 degrees Celsius at the rate of 5 degrees Celsius every hour.What will be the temperature temperature 10 hours after the process begins. I know it's about integers, and the answer is -10° Celsius, but I need the solution on how to find the answer.
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A certain process requires that room temperature be lowered from 40 degrees Celsius at the rate of 5 degrees Celsius every hour.What will be the temperature temperature 10 hours after the process begins. I know it's about integers, and the answer is -10° Celsius, but I need the solution on how to find the answer.

Lowering it 5%5EoC every hour for 10 hours results in total lowering of 5(10), or 50%5EoC.
Lowering the temperature, 50%5EoC, from 40%5EoC means that the temperature, after a 10-hour period is:
40%5Eo+-+50%5Eo, or highlight_green%28highlight_green%28-+10%5Eo%29%29C