document.write( "Question 1093512: If the temperature using the Fahrenheit scale is F degrees and using the centigrade scale is F = 9C/5+32, what is the range of values of C if F is to be between 86 and 140? \n" ); document.write( "
Algebra.Com's Answer #708228 by Boreal(15235)\"\" \"About 
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F=86, then C=(5/9)(F-32)
\n" ); document.write( "C=(5/9)(54)=30 degrees.
\n" ); document.write( "F=140
\n" ); document.write( "C=(5/9)(108), subtracting 32 from 140.
\n" ); document.write( "C=60 degrees.
\n" ); document.write( "[30, 60] degrees
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