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6.8 Exercise 130

Avg difficulty 2.5

Use this scenario: A soup with an internal temperature of $\text{350}°$ Fahrenheit was taken off the stove to cool in a $\text{71}°\text{F}$ room. After fifteen minutes, the internal temperature of the soup was $\text{175}°\text{F} .$

How many minutes will it take the soup to cool to $\text{85}°\text{F}?$

OpenStax Algebra and Trigonometry 2e, 6.8 Fitting Exponential Models to Data, exercise 130

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Adapted from College Algebra © 2021 Rice University. Licensed under CC BY 4.0. Sources: College Algebra 2e, Algebra and Trigonometry 2e, Precalculus 2e, College Algebra with Corequisite Support 2e. Imported at revision 4922e46.