document.write( "Question 255359: Two airplanes start toward each other at the same time from airports located 1950 km apart. One plane flies at an average speed of 360 km/h. What should the average speed of the plane be if they meet in 3 hours? Show all work. \n" ); document.write( "
Algebra.Com's Answer #187621 by drk(1908)![]() ![]() ![]() You can put this solution on YOUR website! This is a RTD problem. Here is the table based on given information: \n" ); document.write( "airplane . . . . . . . . .rate . . . . . . . . .time . . . . . . . . .distance \n" ); document.write( "A . . . . . . . . . . .. . . .360 . . . . . . . . .3 . . . . .. . . . . .. . 1080 \n" ); document.write( "B . . . . . . . . . . . . . . .R . . . . . . . . . . .3 . . . . . . .. . . . .. . 3R \n" ); document.write( "totals . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1950 \n" ); document.write( "The distance of A + distance of B = total distance. So, \n" ); document.write( "1080 + 3R = 1950 \n" ); document.write( "3R = 870 \n" ); document.write( "R = 290 km/h \n" ); document.write( " |