document.write( "Question 82467: Working Together,Doug and Barbara can do a job in 6 hours. Barbara is able to do the job in 10 hours. How long does it take Doug to do the job if he works alone? \n" ); document.write( "
Algebra.Com's Answer #59064 by checkley75(3666)![]() ![]() ![]() You can put this solution on YOUR website! 6=10X/(10+X) CROSS MULTIPLY \n" ); document.write( "6(10+X)=10X \n" ); document.write( "60+6X-10X=0 \n" ); document.write( "-4X=-60 \n" ); document.write( "X=-60/-4 \n" ); document.write( "X=15 HOURS FOR DOUG TO DO THE JOB ALONE. \n" ); document.write( "PROOF \n" ); document.write( "6=10*15/(10+15) \n" ); document.write( "6=150/25 \n" ); document.write( "6=6 \n" ); document.write( " \n" ); document.write( " |