document.write( "Question 287709: An experienced roofer can roof a house in 26 hours. A beginning roofer needs 39 hours to complete the same job. Find how long it takes for the two of them to do the job together.\r
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document.write( "This is what i know:
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document.write( "I think I need to use direct or inverse variation equations\r
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document.write( "This is what I've tried:
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document.write( "y=k/x
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document.write( "26=k/39--Multiple by 39 to get k by itself
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document.write( "1014=k\r
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document.write( "The back of my textbook says the answer is 15.6 hours\r
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document.write( "Thank you for your time.
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document.write( "This homework is due tomorrow.
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document.write( "I'm grateful for any help I can get
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document.write( "Thanks again \n" );
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Algebra.Com's Answer #208479 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! Several other tutors gave you excellent answers. \n" ); document.write( "I want to thank you for giving the books answer and your attempt at solving the problem. \n" ); document.write( " |