document.write( "Question 926630: A homeowner estimates that it will take her 9 days to roof her house. A professional roofer estimates that he could roof the house in 4 days. How long will it take if the homeowner helps the roofer? \n" ); document.write( "
Algebra.Com's Answer #562355 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A homeowner estimates that it will take her 9 days to roof her house. A professional roofer estimates that he could roof the house in 4 days. How long will it take if the homeowner helps the roofer? \n" ); document.write( "================= \n" ); document.write( "The owner does 1/9 of the roof per day. \n" ); document.write( "The roofer does 1/4 of the roof per day. \n" ); document.write( "Can you do the rest? \n" ); document.write( " |