document.write( "Question 572880: how long will it take for you to walk 140km with the speed of 21km/hr \n" ); document.write( "
Algebra.Com's Answer #368544 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
how long will it take for you to walk 140km with the speed of 21km/hr
\n" ); document.write( ".
\n" ); document.write( "140/21
\n" ); document.write( "= 20/3 hours
\n" ); document.write( "= 6 and 2/3 hours
\n" ); document.write( "or
\n" ); document.write( "= 6.67 hours
\n" ); document.write( "or
\n" ); document.write( "= 6 hours and 40 minutes
\n" ); document.write( "
\n" ); document.write( "
\n" );