document.write( "Question 588442: an airplane traveled the first 96 miles of a flight at an average rate of speed of 16 miles per minute. It then traveled another 18 minutes at a rate of speed of 12 miles per minute. what is the average rate of sped for the whole flight. \n" ); document.write( "

Algebra.Com's Answer #374514 by josmiceli(19441) $\"\"$ $\"About$

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The average speed is ( total distance ) / ( total time )
\n" ); document.write( "For 1st part of trip:
\n" ); document.write( " $\"+96+=+16t+\"$
\n" ); document.write( " $\"+t+=+6+\"$ min
\n" ); document.write( "where $\"t\"$ is time in minutes
\n" ); document.write( "-----------
\n" ); document.write( "For 2nd part:
\n" ); document.write( " $\"+d+=+12%2A18+\"$
\n" ); document.write( " $\"+d+=+216+\"$ mi
\n" ); document.write( "------------
\n" ); document.write( "The total distance is:
\n" ); document.write( " $\"+96+%2B+216+=+312+\"$ mi
\n" ); document.write( "The total time in minutes is
\n" ); document.write( " $\"+6+%2B+18+=+24+\"$ min
\n" ); document.write( " $\"+312+%2F+24+=+13+\"$
\n" ); document.write( "The average speed for the who;e flight is 13 mi/min \n" ); document.write( "

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