document.write( "Question 1074156: A train leaves New York for Boston, 200 miles away, at 3pm and averages 75 mph. Another train leaves Boston for New York on an adjacent set of tracks at 5pm and averages 45 mph. At what time will the trains meet?\r
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document.write( "D=RT rule is confused here.
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document.write( "Can someone help me? Thanks. \n" );
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Algebra.Com's Answer #688894 by ikleyn(52915) You can put this solution on YOUR website! . \n" ); document.write( "A train leaves New York for Boston, 200 miles away, at 3pm and averages 75 mph. Another train leaves Boston for New York \n" ); document.write( "on an adjacent set of tracks at 5pm and averages 45 mph. At what time will the trains meet?\r \n" ); document.write( "\n" ); document.write( "D=RT rule is confused here. \n" ); document.write( "Can someone help me? Thanks. \n" ); document.write( "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r\n" ); document.write( "Your equation is\r\n" ); document.write( "\r\n" ); document.write( "75*(t+2) + 45*t = 200, (the \"distance\" equation)\r\n" ); document.write( "\r\n" ); document.write( "where t is the time counting from 5 pm, when the second train started. \r\n" ); document.write( "\r\n" ); document.write( "The equation says that the total distance covered by the two trains is 200 miles, the full distance.\r\n" ); document.write( "\r\n" ); document.write( "Simplify and solve to get the answer t =\r \n" ); document.write( "\n" ); document.write( "See the lessons\r \n" ); document.write( "\n" ); document.write( "- Travel and Distance problems \r \n" ); document.write( "\n" ); document.write( "- Travel and Distance problems for two bodies moving in opposite directions \r \n" ); document.write( "\n" ); document.write( "- Travel and Distance problems for two bodies moving in the same direction (catching up)\r \n" ); document.write( "\n" ); document.write( "in this site.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |