document.write( "Question 178069: TWO JETS LEAVE DENVER AT 9 AM ONE FLYING EAST AT A SPEED 50km/h GREATER THAN THE OTHER,WHICH IS TRAVELING WEST.AT 11 AM THE PLANES ARE 2500 km APART .FIND THERE SPEEDS.\r
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document.write( " I HAVE TRIED SEVERAL WAYS IS THERE AN EASIER WAY TO REMEMBER THE FORMULAS FOR THIS \n" );
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Algebra.Com's Answer #133027 by stanbon(75887) ![]() You can put this solution on YOUR website! TWO JETS LEAVE DENVER AT 9 AM ONE FLYING EAST AT A SPEED 50km/h GREATER THAN THE OTHER,WHICH IS TRAVELING WEST.AT 11 AM THE PLANES ARE 2500 km APART .FIND THERE SPEEDS. \n" ); document.write( "--------------------- \n" ); document.write( "East jet DATA: \n" ); document.write( "rate = (x+50) km/h ; time = 2 hr ; distance = rt = 2(x+50) km \n" ); document.write( "------------------------------- \n" ); document.write( "West jet DATA: \n" ); document.write( "rate = x km/h ; time = 2 hr ; distanc e= 2x km \n" ); document.write( "----------------------------- \n" ); document.write( "Equation: \n" ); document.write( "distance + distance = 2500 \n" ); document.write( "2(x+50) + 2x = 2500 \n" ); document.write( "4x = 2400 \n" ); document.write( "x = 600 km/h (speed of the west jet) \n" ); document.write( "x+50 = 650 km/h (speed of the east jet) \n" ); document.write( "=========================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |