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)![]() ![]() ![]() 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( " |