document.write( "Question 880936: suppose you have entered a 121-mile biathlon that consists of a run and bicycle race. During your run, your average velocity is 6 miles per hours, and during your bicycle race, your average velocity is 23 miles per hour. You finish the race in 6 hours. What is the distance of the run? What is the distance of the bicycle race? \n" ); document.write( "
Algebra.Com's Answer #531815 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! suppose you have entered a 121-mile biathlon that consists of a run and bicycle race. During your run, your average velocity is 6 miles per hours, and during your bicycle race, your average velocity is 23 miles per hour. You finish the race in 6 hours. What is the distance of the run? What is the distance of the bicycle race? \n" ); document.write( "*** \n" ); document.write( "let x=distance of the running race \n" ); document.write( "121-x=distance of the bicycle race \n" ); document.write( "travel time=distance/velocity \n" ); document.write( ".. \n" ); document.write( " \n" ); document.write( "lcd=6*23=138 \n" ); document.write( "23x+6(121-x)=6*138 \n" ); document.write( "23x+726-6x=828 \n" ); document.write( "17x=102 \n" ); document.write( "x=6 \n" ); document.write( "121-x=115 \n" ); document.write( "distance of the running race = 6 miles \n" ); document.write( "distance of the bicycle race=115 miles \n" ); document.write( " |