document.write( "Question 626102: The question is......Two jets leave at the same time,one is flying eat, the other west. the speed of the jet that is flying west is 75km/h faster than the speed of the jet flying east. in 3 hr they are 3075km apart. let w represent the speed of the plane travelling west and e represent the speed of plane travelling east. you need to know the speed of each plane. write a system of equation to model this situation \n" ); document.write( "
Algebra.Com's Answer #394001 by mananth(16946) You can put this solution on YOUR website! Plane going East x mph \n" ); document.write( "Plane going West x+ 75 mph \n" ); document.write( ".. \n" ); document.write( "They are moving away from each other \n" ); document.write( " \n" ); document.write( "So add up their speed. \n" ); document.write( " \n" ); document.write( "combined speed = x+x + 75 \n" ); document.write( "( 2 x + 75 ) \n" ); document.write( "Time = 3 hours \n" ); document.write( "Distance = 3075 miles \n" ); document.write( "Distance = speed * time \n" ); document.write( " \n" ); document.write( "(2x+75)*3=3075\r \n" ); document.write( "\n" ); document.write( "6.00 x + 225 = 3075 \n" ); document.write( "6 x = 3075 + -225 \n" ); document.write( "6 x = 2850 \n" ); document.write( "/ 6 \n" ); document.write( "x= 475 mph \n" ); document.write( "Plane going East = 475 mph \n" ); document.write( "Plane going West 475 + 75 = 550 mph \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |