document.write( "Question 105914: a lab is testing two high-speed trains. One train travels 40 km/h faster than the other train. While one travels 70km, the other travels 60 km. Find their speeds.\r
\n" );
document.write( "\n" );
document.write( "Please break it down.. thanks \n" );
document.write( "
Algebra.Com's Answer #77058 by HyperBrain(694)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let x= speed of the slower train \n" ); document.write( "____x+40=speed of the faster.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "It took the same time for the faster one to reach 70 km and the slower one to attain 60km.\r \n" ); document.write( "\n" ); document.write( "time for the slower= \n" ); document.write( "\n" ); document.write( "time for the faster= \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "By cross multiplication,\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( "Therefore, their soeeds are 200 and 240 km/hr!\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Power up, \n" ); document.write( "HyperBrain! \n" ); document.write( " \n" ); document.write( " |