document.write( "Question 1121636: One crew can seal a parking lot in 6 hours and another in 9 hours. How long will it take to seal the parking lot if the two crews work together? \n" ); document.write( "
Algebra.Com's Answer #737590 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "If A can do one job in time periods, and B can do the same job in time periods, then in one time period, A can do of the job, and B can do of the job. Working together, they can do of the job in one time period. So, working together, they can do the whole job in:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "time periods.
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "John
\n" ); document.write( "
\n" ); document.write( "My calculator said it, I believe it, that settles it
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" );