document.write( "Question 713069: how long will it take lemonade to go from 68 degrees Fahrenheit to 38 degree Fahrenheit if its temperature drops 25 degrees Fahrenheit every 30 minutes \n" ); document.write( "

Algebra.Com's Answer #438280 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
( change in temperature ) / ( change in time ) = -25 / 30 degrees/min
\n" ); document.write( "Let $\"+t+\"$ = the change in temperature
\n" ); document.write( " $\"+%28+38+-+68+%29+%2F+t++=+-25+%2F+30+\"$
\n" ); document.write( " $\"+-30+%2F+t+=+-5%2F6+\"$
\n" ); document.write( " $\"+-30%2A6+=+-5t+\"$
\n" ); document.write( " $\"+5t+=+180+\"$
\n" ); document.write( " $\"+t+=+36+\"$
\n" ); document.write( "It will take 36 minutes\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );