document.write( "Question 250355: An Amtrak train leaves Penn Station, NYC, traveling south at 60mph. Three hours later, a Metroliner leaves the same station traveling south at 80mph. How long will it take the Metroliner to catch up to the Amtrak train. \n" ); document.write( "
Algebra.Com's Answer #182305 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! D=RT \n" ); document.write( "D=60T \n" ); document.write( "D=80(T-3) \n" ); document.write( "SET THE 2 DISTANCES EQUAL. \n" ); document.write( "60T=80(T-3) \n" ); document.write( "60T=80T-240 \n" ); document.write( "60T-80T=-240 \n" ); document.write( "-20T=-240 \n" ); document.write( "T=-240/-20 \n" ); document.write( "T=12 HOURS THEY WILL MEET. \n" ); document.write( "PROOF: \n" ); document.write( "60*12=80(12-3) \n" ); document.write( "720=80*9 \n" ); document.write( "720=720 \n" ); document.write( " |