document.write( "Question 740478:
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document.write( "A train leaves a station and travels north at 75km/hr. three hours later , a second train leaves on a parallel track and travels north at 115km/hr. How far from the station will the meet? \n" );
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Algebra.Com's Answer #451612 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! D=RT \n" ); document.write( "D=75T \n" ); document.write( "D=115(T-3) \n" ); document.write( "75T=115(T-3) \n" ); document.write( "75T=115T-345 \n" ); document.write( "75T-115T=-345 \n" ); document.write( "-40T=-345 \n" ); document.write( "T=-345/-40 \n" ); document.write( "T=8.625 HOURS AFTER THE FIRST TRAIN LEAVES THEY MEET. \n" ); document.write( "PROOF: \n" ); document.write( "75*8.625=115(8.625-3) \n" ); document.write( "646.875=115*5.625 \n" ); document.write( "646.875=646.875 MILES FROM THE STATION THEY WILL MEET. \n" ); document.write( " |