document.write( "Question 334085: what is the time that A will meet B if A walks at 80km/hr and B walks 60km/he and the total distance is 210km \n" ); document.write( "
Algebra.Com's Answer #239405 by jrfrunner(365) You can put this solution on YOUR website! if they are to meet, the presumption (since not stated) is that they are walking toward each other. \n" ); document.write( "--- \n" ); document.write( "let \n" ); document.write( "let \n" ); document.write( "let \n" ); document.write( "let \n" ); document.write( "let t=time they meet \n" ); document.write( "---- \n" ); document.write( "you need to know the relationship: distance = rate*time: d=r*t \n" ); document.write( "-- \n" ); document.write( "given d= \n" ); document.write( "d= \n" ); document.write( "210=80*t+60*t=140*t \n" ); document.write( "210/140=t \n" ); document.write( "-- \n" ); document.write( "t=1.5 hours \n" ); document.write( " |