document.write( "Question 693681: I have a question regarding Applications with motion. The motion formula d=rt
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document.write( "Word problems, I HATE word problems and am so confused how to set up this problem~\r
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document.write( "A private airplane leaves an airport and flies due south at 192 mph. Two hours later a jet leaves the same airport and flies due south at 960 mph. When will the jet overtake the plane?
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Algebra.Com's Answer #427518 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! A private airplane leaves an airport and flies due south at 192 mph. \n" ); document.write( " Two hours later a jet leaves the same airport and flies due south at 960 mph. \n" ); document.write( " When will the jet overtake the plane? \n" ); document.write( ": \n" ); document.write( "You know the distance formula, just read it carefully and THINK! \n" ); document.write( ": \n" ); document.write( "A good fact to keep in mind is: \n" ); document.write( "When the jet overtakes the small plane, they will have traveled the same distance; \n" ); document.write( ": \n" ); document.write( "Let t = flying time of small plane \n" ); document.write( "The large plane started 2 hrs later, therefore \n" ); document.write( "(t-2) = flying time of jet \n" ); document.write( ": \n" ); document.write( "Write a distance equation \n" ); document.write( "jet dist = small plane dist \n" ); document.write( "960(t-2) = 192t \n" ); document.write( "960t - 1920 = 192t \n" ); document.write( "960t - 192t = 1920 \n" ); document.write( "768t = 1920 \n" ); document.write( "t = 1920/768 \n" ); document.write( "t = 2.5 hrs after the small plane departs, the jet overtakes it \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "We can prove that to ourselves, find the distance each plane flew \n" ); document.write( "the jet travel time; 2.5 - 2 = .5hr \n" ); document.write( "a distance equation for each plane \n" ); document.write( ".5(960) = 480 mi \n" ); document.write( "2.5(192) = 480 mi also \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Did this help? You know much of life involves solving word problems. Not always with numbers, but deciphering what people say to you, is like solving a word problem. It is worth your time to practice and learn how to do them. A lot people on this forum can help you do that. \n" ); document.write( " Merry Christmas!, Carl \n" ); document.write( " |