document.write( "Question 887380: Housecleaning. Sally can clean the house in 6 hours, and her father can clean the house in 4 hours. Sally's younger brother, Dennis, cna completely mess up the house in 8 hours. If Sally and her father clean and Dennis plays, how long will it take to clean the house? \n" ); document.write( "
Algebra.Com's Answer #536595 by josgarithmetic(39620)\"\" \"About 
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The younger brother's rate is negative in regard to cleaning the house. One job is \"clean the house\".\r
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\n" ); document.write( "\n" ); document.write( "\"1%2F6%2B1%2F4-1%2F8\", the HOUSE per HOUR cleaning rate.\r
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\n" ); document.write( "\n" ); document.write( "For HOURS per HOUSE, \"highlight%281%2F%281%2F6%2B1%2F4-1%2F8%29%29\".
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