A cup of coffee is taken out of a room and taken to the backyard where the ambient temperature is 5°F. After one minute, the coffee temperature is measured at 55°F and after 5 minutes the temperature is 30°C.What was the temperature inside the room?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter3: Solving Equation And Problems
Section3.1: Transforming Equations: Addition And Subtraction
Problem 10P
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A cup of coffee is taken out of a room and taken to the backyard where the ambient temperature is 5°F. After one minute, the coffee temperature is measured at 55°F and after 5 minutes the temperature is 30°C.
What was the temperature inside the room?

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