document.write( "Question 329996: Two jets leave Denver at 9:00 AM, one flying east at a speed 50 km/h greater than the other, which is traveling west. At 11:00 AM the plans are 2500 kn apart. Find their speeds. \n" ); document.write( "
Algebra.Com's Answer #236455 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Two jets leave Denver at 9:00 AM, one flying east at a speed 50 km/h greater than the other, which is traveling west. At 11:00 AM the plans are 2500 kn apart. Find their speeds. \n" ); document.write( "--- \n" ); document.write( "West-bound DATA: \n" ); document.write( "time = 2 hrs ; rate = x km/h ; distance = rt = 2x km \n" ); document.write( "----------------------- \n" ); document.write( "East bound DATA: \n" ); document.write( "time = 2 hrs ; rate = (x+50)km/h ; distance = 2(x+50) km \n" ); document.write( "----------------------- \n" ); document.write( "Equation: \n" ); document.write( "distance + distance = 2500 \n" ); document.write( "2x + 2(x+50) = 2500 \n" ); document.write( "x + x+50 = 1250 \n" ); document.write( "2x = 1200 \n" ); document.write( "x = 600 km/h (speed of the West-bound plane) \n" ); document.write( "--- \n" ); document.write( "x+50 = 650 km/h (speed of the East-bound plane) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |