document.write( "Question 520854: Mr. Anders and Mr. Rich each drove home from a business meeting. Mr. Anders traveled east at 100 kilometer per hour and Ms. Rich traveled west at 80 kilometers per hours. In how many hours were they 100 kilometers apart. \n" ); document.write( "
Algebra.Com's Answer #346246 by Maths68(1474)![]() ![]() You can put this solution on YOUR website! Effective Speed = 100 + 80 = 180 kmph \n" ); document.write( "Distance apart = 100 km \n" ); document.write( "Time = Distance / Speed \n" ); document.write( "Time = 100 / 180 \n" ); document.write( "Time = 0.556 hour \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "After 0.556 hour they will be (approximately)100 kilometers apart.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Check \n" ); document.write( "===== \n" ); document.write( "Mr. Anders will cover = Speed * time = 100*0.556= 55.60 km \n" ); document.write( "Mr. Rich will cover = Speed * time = 80 * 0.556 = 44.48 km \n" ); document.write( "After 0.556 hour they will be = 100.08 miles apart. \n" ); document.write( " \n" ); document.write( " |