document.write( "Question 383238: A regular train travels at 60mph while a highspeed train travels at 90mph. It takes the regular train 2.5 hours longer to get to the next stop than the highspeed train. How long does it take for both trains to arrive at the next stop. \n" ); document.write( "
Algebra.Com's Answer #271455 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A regular train travels at 60mph while a highspeed train travels at 90mph. \n" ); document.write( " It takes the regular train 2.5 hours longer to get to the next stop than the highspeed train. \n" ); document.write( "How long does it take for both trains to arrive at the next stop. \n" ); document.write( ": \n" ); document.write( "Let t = time for the fast train to get to the next stop \n" ); document.write( "then \n" ); document.write( "(t+2.5) = time of the slow train to get there \n" ); document.write( ": \n" ); document.write( "Both trains travel the same distance; write a distance equation: dist = speed * time \n" ); document.write( ": \n" ); document.write( "90t = 60(t+2.5) \n" ); document.write( "90t = 60t + 150 \n" ); document.write( "90t - 60t = 150 \n" ); document.write( "30t = 150 \n" ); document.write( "t = \n" ); document.write( "t = 5 hrs for the fast train; and 7.5 hrs for the slow train \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution by finding the distances, should be equal: \n" ); document.write( "90*5 = 450 mi \n" ); document.write( "60*7.5 = 450 mi \n" ); document.write( " |