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)![]() ![]() ![]() You can put this solution on YOUR website! 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( " |