document.write( "Question 1197202: A truck with a heavy load drove from boston to new york at 45 mph. After unloading, it returned to Boston at a speed of 65mph. WHat was it's average speed for the whole trip? \n" ); document.write( "
Algebra.Com's Answer #830369 by ikleyn(52835)\"\" \"About 
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\n" ); document.write( "A truck with a heavy load drove from Boston to New York at 45 mph. After unloading, it returned to Boston
\n" ); document.write( "at a speed of 65mph. What was it's average speed for the whole trip?
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document.write( "For the average speed of the round trip (when the distances of both parts of the trip \r\n" );
document.write( "are the same) use the formula\r\n" );
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document.write( "    average speed = \"%282%2Au%2Av%29%2F%28u%2Bv%29\" = \"%282%2A45%2A65%29%2F%2845+%2B+65%29\" = \"5850%2F110\" = 53.182 mph  (rounded).    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "For this formula see the lesson\r
\n" ); document.write( "\n" ); document.write( "    - Calculating an average speed: a train going from A to B and back \r
\n" ); document.write( "\n" ); document.write( "in this site.   Find there many other similar solved problems.\r
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