document.write( "Question 1076158: The first plane is traveling 2.5 times as fast as the second plane. After traveling in the same direction for 5 hours, they are 735 miles apart. What is the average speed of each plane? \n" ); document.write( "
Algebra.Com's Answer #690842 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! Let n be the speed of the second plane. Then the speed of the first plane is 2.5n. So: \n" ); document.write( "5(2.5)n-5n=735 \n" ); document.write( "7.5n=735 \n" ); document.write( "n=98 \n" ); document.write( "The 2nd plane averages 98 mph; the first plane averages 245 mph. ☺☺☺☺ \n" ); document.write( " \n" ); document.write( " |