document.write( "Question 1204956: a jet plane traveling at 570 mph overtakes a propellee deiven plane that has a 2 hr head start the propeller deiven plane is traveling at 190mph  \n" ); document.write( "
Algebra.Com's Answer #841512 by greenestamps(13216)\"\" \"About 
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\n" ); document.write( "In the two hours that the prop plane travels before the jet plane starts, the prop plane travels 2*190 = 380 miles.

\n" ); document.write( "Once the jet plane starts, it catches up to the prop plane at a rate equal to the difference between the speeds of the two planes, which is 570-190 = 380 mph.

\n" ); document.write( "The number of hours it takes the jet plane to travel 380 miles more than the prop plane, at a catch-up rate of 380 mph, is 380/380 = 1.

\n" ); document.write( "ANSWER: The jet plane overtakes the prop plane 1 hour after it starts flying.

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