document.write( "Question 74492: a northbound train left the station at noon. 2 hours later a southbound train left the same station. At 6 the 2 trains were 450 miles apart. Find the rate of the 2 trains if the northbound train was traveling 25 mph faster than the southbound train \n" ); document.write( "
Algebra.Com's Answer #53518 by checkley75(3666)\"\" \"About 
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450=6(x+25)+4x
\n" ); document.write( "450=6x+150+4x
\n" ); document.write( "10x=450-150
\n" ); document.write( "10x=300
\n" ); document.write( "x=300/10
\n" ); document.write( "x=30 mph for the southbound train & 30+25=55 mph for the northbound train
\n" ); document.write( "proof
\n" ); document.write( "450=6*55+4*30
\n" ); document.write( "450=330+120
\n" ); document.write( "450=450
\n" ); document.write( "
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