document.write( "Question 691238: the distance between A and B is 80km a train from A is going towards B with a speed of 60 km/hr and a train comes from point B towards a with a speed of 100km/hr where is point C if they will meet at the same time? \n" ); document.write( "
Algebra.Com's Answer #426594 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! The distance between A and B is 80km \n" ); document.write( "A train from A is going towards B with a speed of 60 km/hr; \n" ); document.write( "and a train comes from point B towards A with a speed of 100km/hr \n" ); document.write( "Where is point C if they will meet at the same time? \n" ); document.write( "the phrase \"meet at the same time\" makes no sense. \n" ); document.write( ": \n" ); document.write( "Assume you mean, \"Where is C, the point that they meet?\" \n" ); document.write( ": \n" ); document.write( "let c = distance from A \n" ); document.write( "then \n" ); document.write( "(80-c) = distance from B \n" ); document.write( ": \n" ); document.write( "Write a time equation, time = dist/speed \n" ); document.write( ": \n" ); document.write( "A's travel time = B's travel time \n" ); document.write( " \n" ); document.write( "Cross multiply \n" ); document.write( "100c = 60(80-c) \n" ); document.write( "100c = 4800 - 60c \n" ); document.write( "100c + 60c = 4800 \n" ); document.write( "160c = 4800 \n" ); document.write( "c = 4800/160 \n" ); document.write( "c = 30 km from A, is where they meet \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Prove this by finding the travel time of each train, should be equal \n" ); document.write( "30/60 = .5 hrs \n" ); document.write( "(80-30)/100 = .5 hrs \n" ); document.write( " \n" ); document.write( " |