You place a cup of 210°F coffee on a table in a room

| August 30, 2017

Question
You place a cup of 210°F coffee on a table in a room that is 68°F, and 10 minutes later, it is 200°F . Approximately how long will it be before the coffee is 180°F? Use Newton’s law of cooling: 180°F

A: 1 hour

B: 15 minutes

C: 35 minutes

D: 45 minutes

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