document.write( "Question 881052: A type of liquid cools from 90°C to the temperature T°C in x minutes. Given that T=90(0.98)^x, find the value of
\n" ); document.write( "(a) T when x=7,
\n" ); document.write( "(b) x when T=30. \n" ); document.write( "

Algebra.Com's Answer #531957 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
a) $\"T=90%280.98%29%5Ex\"$
\n" ); document.write( " $\"T=90%280.98%29%5E7\"$
\n" ); document.write( " $\"T=90%280.868126%29\"$
\n" ); document.write( " $\"T=78.3\"$
\n" ); document.write( "b) $\"T=90%280.98%29%5Ex=30\"$
\n" ); document.write( " $\"0.98%5Ex=1%2F3\"$
\n" ); document.write( " $\"x=log%28%281%2F3%29%29%2Flog%28%280.98%29%29\"$
\n" ); document.write( " \n" ); document.write( "

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