document.write( "Question 236071: Maria, an experienced shipping clerk, can fill a certain order in 6 hours. Bill, a new clerk, needs 11 hours to do the same job. Working together, how long will it take them to fill the order? \n" ); document.write( "
Algebra.Com's Answer #173825 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
their combined time determines the fraction of the job each one does
\n" ); document.write( "___ the fractions add to one (the whole job)\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "(x / 6) + (x / 11) = 1\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "11x + 6x = 66\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "x = 66 / 16 = 4.125
\n" ); document.write( "
\n" );