document.write( "Question 1123816: A reconnaissance plane flies 514 km away from
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Algebra.Com's Answer #740184 by ikleyn(52756) $\"\"$ $\"About$

You can put this solution on YOUR website!
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document.write( "Total two-ways distance is 2*514 kilometers = 1028 kilometers = 1028000 meters.\r\n" );
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document.write( "Total time =  +  seconds.\r\n" );
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document.write( "Average speed =  =  =  =  = 715.2 m/s\r\n" );
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\n" ); document.write( "\n" ); document.write( "Two lessons to learn from this solution :\r
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document.write( "    1.  From the solution, learn the method of calculating average speed.\r\n" );
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document.write( "    2.  In this problem (as in other two-ways problems) the average speed does not depend on a one-way distance. \r\n" );
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document.write( "        The average speed = .\r\n" );
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\n" ); document.write( "\n" ); document.write( "For other similar problems, see the lessons\r
\n" ); document.write( "\n" ); document.write( " - Calculating an average speed: a train going from A to B and back \r
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