document.write( "Question 1103149: Grace can clean an entire house in 8 hours. Cherry can do the same job in 6 hours. After 2 hours of working together, Grace left and Cherry finished cleaning. How long did it take Cherry to finish the job? \n" ); document.write( "
Algebra.Com's Answer #717830 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Rate x Time=Output.
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\n" ); document.write( "\"R%5BG%5D%2A8=1\"
\n" ); document.write( "\"R%5BG%5D=1%2F8\"
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\n" ); document.write( "\"R%5BC%5D%2A6=1\"
\n" ); document.write( "\"R%5BC%5D=1%2F6\"
\n" ); document.write( "So together,
\n" ); document.write( "\"%28R%5BG%5D%2BR%5BC%5D%29%2A2=%281%2F8%2B1%2F6%292=1%2F4%2B1%2F3=3%2F12%2B4%2F12=7%2F12\"
\n" ); document.write( "So then,
\n" ); document.write( "\"1-7%2F12=5%2F12\"
\n" ); document.write( "\"5%2F12\" still needs to be done by Cherry.
\n" ); document.write( "\"R%5BC%5D%2At%5BC%5D=5%2F12\"
\n" ); document.write( "\"%281%2F6%29%2At%5BC%5D=5%2F12\"
\n" ); document.write( "\"t%5BC%5D=%285%2F12%29%286%29\"
\n" ); document.write( "\"t%5BC%5D=5%2F2\"
\n" ); document.write( "Cherry needed \"2%261%2F2\" hours to finish.
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