document.write( "Question 61278: A northbound train left at noon. Two hours later, a southbound train left the same station. At 6:00 p.m., the two trains were 490 miles apart. Find the rate of each train if the northbound train traveled 15 miles per hour faster than the southbound train. \n" ); document.write( "
Algebra.Com's Answer #42153 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
490=(R-15)*6+R*4
\n" ); document.write( "490=6R-90+4R
\n" ); document.write( "490=10R-90
\n" ); document.write( "10R=490+90
\n" ); document.write( "10R=580
\n" ); document.write( "R=580/10
\n" ); document.write( "R=58 MPH FOR 4 HOURS FOR THE SOUTH BOUND TRAIN
\n" ); document.write( "THUS THE NORTH BOUND TRAIN WAS TRAVELING
\n" ); document.write( "58-15=43 MPH FOR 6 HOURS
\n" ); document.write( "PROOF
\n" ); document.write( "490=43*6+58*4
\n" ); document.write( "490=258+232
\n" ); document.write( "490=490
\n" ); document.write( "
\n" );