document.write( "Question 819159: Erin is on a train traveling at 70 mph. She spots a train traveling at 60 mph and records it takes 6 seconds for the 2nd train to pass. How long (in feet) is the second train if the trains are going in the same direction? \n" ); document.write( "
Algebra.Com's Answer #492964 by mananth(16946)![]() ![]() You can put this solution on YOUR website! 1 mph = 5280/3600 \n" ); document.write( "=22/15 feet/s\r \n" ); document.write( "\n" ); document.write( "difference in speed = 10 mph\r \n" ); document.write( "\n" ); document.write( "10 mph = 10 *22/15 feet/s\r \n" ); document.write( "\n" ); document.write( "44/3 feet/s\r \n" ); document.write( "\n" ); document.write( "d= rate * time\r \n" ); document.write( "\n" ); document.write( "d=44/3 * 6\r \n" ); document.write( "\n" ); document.write( "= 88 feet\r \n" ); document.write( "\n" ); document.write( "length of train = 88 feet \n" ); document.write( " |