document.write( "Question 1198720: Chris can mow the lawn in 20 minutes. His mother can mow the lawn in 30 minutes. Chris works for 10 minutes before his mother begins to help. How long do they work together to complete the job? \n" ); document.write( "
Algebra.Com's Answer #832371 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "In order for the mother could help, they should have two mowers.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "
\n" ); document.write( "
\n" );