document.write( "Question 899859: Barry can do a certain job in 9 hours, whereas it takes Samuel 11 hours to do the same job. How long would it take them to do the job working together? \n" ); document.write( "
Algebra.Com's Answer #545633 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Barry does 1/9 per hour. \n" ); document.write( "Samuel does 1/11 per hour. \n" ); document.write( "Together they do 1/9 + 1/11 per hour. \n" ); document.write( "Add to get the job/hr \n" ); document.write( "Invert to get hours/job \n" ); document.write( " \n" ); document.write( " |