document.write( "Question 1185052: A boy rides a bicycle at a certain rate for 5 km then decreases his rate by 2 km
\n" );
document.write( "per hour and rode another 6 km. Find his original rate if he rode for a total of 140
\n" );
document.write( "minutes. \n" );
document.write( "
Algebra.Com's Answer #815773 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! The parts of trip are in two different parts.\r \n" ); document.write( "\n" ); document.write( "140 minutes is 120 minutes plus 20 minutes, which is 2 hours 30 minutes \n" ); document.write( "( or, two and one-third hours ) \n" ); document.write( " \r\n" ); document.write( " SPEEDS TIME hour DISTANCE\r\n" ); document.write( "\r\n" ); document.write( "part1 r 5/r 5\r\n" ); document.write( "\r\n" ); document.write( "part2 r-2 6/(r-2) 6\r\n" ); document.write( "\r\n" ); document.write( "TOTAL\r \n" ); document.write( "\n" ); document.write( "You see what equation you can form?\r \n" ); document.write( "\n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( ". \n" ); document.write( " |