document.write( "Question 1139500: A pot of boiling soup with an internal temperature of 100° Fahrenheit was taken off the stove to cool in a 67°F room. After fifteen minutes, the internal temperature of the soup was 95°F. \r
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document.write( "To the nearest minute, how long will it take the soup to cool to 85°F? \n" );
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Algebra.Com's Answer #760020 by ikleyn(52814)![]() ![]() You can put this solution on YOUR website! .\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The solution by @Theo is wrong, since he uses a linear function for the temperature decrease in time.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "while this function must be shifted exponent, according to the Newton's cooling law.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "I even have special lesson with a template solution for this kind of problems,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "but for the person, who is not able to distinct Fahrenheit and Celsius degrees I don't want even show the link to this lesson.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "There is no any sense to explain something relevant to such a person.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "/\/\/\/\/\/\/\/\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Special addition for Alan : the air pressure inside ISS is practically atmospheric, 101.3 kPa.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "See this Wikipedia article https://en.wikipedia.org/wiki/ISS_ECLSS \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |