document.write( "Question 99867: plane leaves an airport traveling at an average speed of 240 kilometers per hour. how long will it take a second plane traveling the same route at an average speed of 600 kilometers per hourto catch up with the first plane if it leaves 3 hours later? \n" ); document.write( "
Algebra.Com's Answer #72804 by checkley71(8403)![]() ![]() ![]() You can put this solution on YOUR website! 240T=600(T-3) \n" ); document.write( "240T=600T-1800 \n" ); document.write( "240T-600T=-1800 \n" ); document.write( "360T=-1800 \n" ); document.write( "T=1800/360 \n" ); document.write( "T=5 HOURS THE FASTER PLANE WILL CATCH UP WITH THE SLOWER PLANE. \n" ); document.write( "PROOF \n" ); document.write( "240*5=600*2 \n" ); document.write( "1200=1200 \n" ); document.write( " |