document.write( "Question 155145: Marty leaves the airport in his private plane and flies due east at 186 mph. Two hours later, a jet leaves the same airport and flies due east at 434 mph. When will the jet overtake Marty's plane? \n" ); document.write( "
Algebra.Com's Answer #114244 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Marty leaves the airport in his private plane and flies due east at 186 mph. Two hours later, a jet leaves the same airport and flies due east at 434 mph. When will the jet overtake Marty's plane? \n" ); document.write( "------------------------------- \n" ); document.write( "1st plane DATA: \n" ); document.write( "rate = 186 mph ; time = x hrs ; distance = 186x miles \n" ); document.write( "------------------------------- \n" ); document.write( "2nd plane DATA: \n" ); document.write( "rate = 434 mph; time = x-2 hrs; distance = 434(x-2) miles \n" ); document.write( "------------------------------- \n" ); document.write( "EQUATION: \n" ); document.write( "distance = distance \n" ); document.write( "186x = 434x - 2*434 \n" ); document.write( "-248x = -2*434 \n" ); document.write( "x = 3 1/2 hours (time the 1st plane is in the air) \n" ); document.write( "x-2= 1 1/2 hours (time the 2nd plane takes to overtake the 1st plane) \n" ); document.write( "=========================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |