document.write( "Question 792483: if train train covers a distance between A and B in 45 minutes. if the speed of the train is reduced by 5 km it will reach in 48 minutes... what is the distance between A and B \n" ); document.write( "
Algebra.Com's Answer #480047 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! if train train covers a distance between A and B in 45 minutes. \n" ); document.write( " if the speed of the train is reduced by 5 km it will reach in 48 minutes... \n" ); document.write( " what is the distance between A and B \n" ); document.write( ": \n" ); document.write( "Find the speed first \n" ); document.write( "let s = original speed \n" ); document.write( "then \n" ); document.write( "(s-5) = slower speed \n" ); document.write( ": \n" ); document.write( "Since we using km/hr, change 45 min to .75 hrs and 48 min to .8 hrs \n" ); document.write( ": \n" ); document.write( "Write a distance equation dist = time * speed \n" ); document.write( ".8(s-5) = .75s \n" ); document.write( ".8s - 4 = .75s \n" ); document.write( ".8s - .75s = 4 \n" ); document.write( ".05s = 4 \n" ); document.write( "s = 4/.05 \n" ); document.write( "s = 80 km/hr \n" ); document.write( "Find the distance \n" ); document.write( ".75 * 80 = 60 km is the distance from A to B \n" ); document.write( "check the distance \n" ); document.write( ".8 * 75 = 60 km \n" ); document.write( " |