7. A cup of hot coffee initially at 95°C cools to 80°C in 5 minutes while sitting in a room oftemperature 21°C. Determine when the temperature of the coffee will be 60°C. Round youranswer to the nearest tenth of a minute.

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Answered: 7. A cup of hot coffee initially at…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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7. A cup of hot coffee initially at 95°C cools to 80°C in 5 minutes while sitting in a room of temperature 21°C. Determine when the temperature of the coffee will be 60°C. Round your answer to the nearest tenth of a minute.