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)\"\" \"About 
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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( "
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