document.write( "Question 874262: A plane leaves an airport traveling at an average speed of 240 kilometers per hyour. How long will it take a second plane traveling the same route at an averege speed of 600kilometrs per hour to catch up with the first plane if it leaves 3 hours later. PLEASE SET UP AN EQUATION AND SOLVE. Thank you very much for your help! \n" ); document.write( "
Algebra.Com's Answer #527403 by mananth(16946) You can put this solution on YOUR website! When the second plane catches up the distance traveled by both is the same\r \n" ); document.write( "\n" ); document.write( "first plane speed = 240 km/h \n" ); document.write( "time = x\r \n" ); document.write( "\n" ); document.write( "distance = 240(x)\r \n" ); document.write( "\n" ); document.write( "Second plane speed = 600 km/h \n" ); document.write( "time = (x-3)\r \n" ); document.write( "\n" ); document.write( "distance = 600(x-3)\r \n" ); document.write( "\n" ); document.write( "240x=600(x-3)\r \n" ); document.write( "\n" ); document.write( "240x=600x-1800\r \n" ); document.write( "\n" ); document.write( "360x=1800 \n" ); document.write( "x=5 hours\r \n" ); document.write( "\n" ); document.write( "second plane starts 3 hours later \n" ); document.write( "5-3=2 hours\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |