document.write( "Question 183657: A metra commuter train leaves union station at noon. 2 hour later , an Amtrak train leaves on the same track, traveling at an average speed that is 50 m/ph faster than the metra train. at 3 pm the amtrak train is 10 miles behind the commuter train. How fast is each going? \r
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document.write( "Thanks for the help \n" );
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Algebra.Com's Answer #137848 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A metro commuter train leaves union station at noon. \n" ); document.write( "---------------------------- \n" ); document.write( "2 hours later an Amtrak train leaves on the same track, traveling at an average speed that is 50 m/ph faster than the metro train. \n" ); document.write( "---------------------------- \n" ); document.write( "at 3 pm the amtrak train is 10 miles behind the commuter train. How fast is each going? \n" ); document.write( "---------------------------- \n" ); document.write( "Amtrak DATA: \n" ); document.write( "rate = x+50 mph ; time = 1 hr. ; distance = tr = x+50 miles \n" ); document.write( "------------------- \n" ); document.write( "Metro DATA: \n" ); document.write( "rate = x mph ; time = 3 hr. ; distance = tr = 3x miles \n" ); document.write( "----------------------- \n" ); document.write( "Equation: \n" ); document.write( "Metro dist. - Amtrak dist. = 10 miles \n" ); document.write( "3x - (x+50) = 10 \n" ); document.write( "2x - 50 = 10 \n" ); document.write( "2x = 60 \n" ); document.write( "x = 30 mph (speed of the Metro train) \n" ); document.write( "x+50 = 80 mph (speed of the Amtrak train\r \n" ); document.write( "\n" ); document.write( "================================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |