document.write( "Question 563819: Two trains are 330 miles apart, and their speeds differ by 200 mph. They travel toward each other and meet in 3 hours. Find the speed of each train.
\n" );
document.write( " \n" );
document.write( "
Algebra.Com's Answer #365079 by mananth(16946)![]() ![]() You can put this solution on YOUR website! Train A x mph \n" ); document.write( "Train B = x+20 mph\r \n" ); document.write( "\n" ); document.write( "they are moving against each other \n" ); document.write( "add up speeds the effective speed = 2x+20\r \n" ); document.write( "\n" ); document.write( "d=330 miles \n" ); document.write( "t= d/r \n" ); document.write( "3=330/(x+20) \n" ); document.write( "3(x+20)=330 \n" ); document.write( "3x+60=330 \n" ); document.write( "3x=270 \n" ); document.write( "/3 \n" ); document.write( "x= 90 mph\r \n" ); document.write( "\n" ); document.write( "Train A speed = 90 mph \n" ); document.write( "Train B speed = 90+20 =110 mph \n" ); document.write( " |