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2. At 2:00 PM, a thermometer reading 80°F is taken outside where the air temperature is 20°F. At 2:03 PM, the temperature reading yielded by the thermometer is 42°F. Later, the thermometer is brought inside where the air is at 80°F. At 2:10 PM, the reading is 71°F. When was the thermometer brought indoors?

2. At 2:00 PM, a thermometer reading 80°F is taken outside where the air temperature is 20°F. At 2:03 PM, the temperature reading yielded by the thermometer is 42°F. Later, the thermometer is brought inside where the air is at 80°F. At 2:10 PM, the reading is 71°F. When was the thermometer brought indoors?

Calculus: Early Transcendentals
Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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2. At 2:00 PM, a thermometer reading 80°F is taken outside where the air temperature is 20°F. At 2:03 PM, the temperature reading yielded by the thermometer is 42°F. Later, the thermometer is brought inside where the air is at 80°F. At 2:10 PM, the reading is 71°F. When was the thermometer brought indoors? 3. A 50-gal tank initially contains 10 gals of fresh water. At t = 0, a brine solution containing 1 lb of salt per gallon is poured into the tank at the rate of 4 gals/min, while the well- stirred mixture leaves at the rate of 2 gal/min. Find the amount of time required for
Transcribed Image Text:2. At 2:00 PM, a thermometer reading 80°F is taken outside where the air temperature is 20°F. At 2:03 PM, the temperature reading yielded by the thermometer is 42°F. Later, the thermometer is brought inside where the air is at 80°F. At 2:10 PM, the reading is 71°F. When was the thermometer brought indoors? 3. A 50-gal tank initially contains 10 gals of fresh water. At t = 0, a brine solution containing 1 lb of salt per gallon is poured into the tank at the rate of 4 gals/min, while the well- stirred mixture leaves at the rate of 2 gal/min. Find the amount of time required for
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