document.write( "Question 1087237: it takes robert and william 12 hours to complete a history project. If Robert works alone on the same project for 16 hours and let william take over, william needs another 7 hours to complete it. How long does it take william to complete the history project alone?
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #701627 by josgarithmetic(39621)![]() ![]() ![]() You can put this solution on YOUR website! ------------------------------------------------------------------------------- \n" ); document.write( "...robert and william 12 hours to complete a history project. If Robert works alone on the same project for 16 hours and let william take over, william needs another 7 hours to complete it. \n" ); document.write( "-------------------------------------------------------------------------------\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "BETTER APPROACH: \n" ); document.write( "If use rates just as variables, not in a form of ratioinal numbers with times as denominators,... \n" ); document.write( " \n" ); document.write( "-\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "William could do the whole job alone in 27 hours. \n" ); document.write( " |