document.write( "Question 175252: Barbara and Ramir raced each other. Barbara averaged 9 mph for the entire course while Ramir averaged 8 mph for the fist half of the course and 10 mph for the second half. Who won? \n" ); document.write( "

Algebra.Com's Answer #130348 by josmiceli(19441) $\"\"$ $\"About$

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The length of the course isn't given,
\n" ); document.write( "so I can pick any length. I'll
\n" ); document.write( "pick $\"7.2\"$ miles
\n" ); document.write( "Using $\"d+=+r%2At\"$ ,
\n" ); document.write( "Barbara's time for the race is:
\n" ); document.write( " $\"t%5Bb%5D+=+7.2%2F9\"$
\n" ); document.write( " $\"t%5Bb%5D+=+.8\"$ hrs
\n" ); document.write( "------------
\n" ); document.write( "Ramir's time for the 1st half is:
\n" ); document.write( " $\"t%5Br1%5D+=+3.6%2F8\"$
\n" ); document.write( " $\"t%5Br1%5D+=+.45\"$ hrs
\n" ); document.write( "Ramir's time for the 2nd half is:
\n" ); document.write( " $\"t%5Br2%5D+=+3.6%2F10\"$
\n" ); document.write( " $\"t%5Br2%5D+=+.36\"$ hrs
\n" ); document.write( " $\"t%5Br1%5D+%2B+t%5Br2%5D+=+.45+%2B+.36\"$
\n" ); document.write( " $\"t%5Br1%5D+%2B+t%5Br2%5D+=+.81\"$ hrs
\n" ); document.write( "Ramir took $\".01\"$ hrs longer, or
\n" ); document.write( " $\".01%2A60+=+.6\"$ min, or
\n" ); document.write( " $\".6%2A60+=+36\"$ sec longer to finish, so
\n" ); document.write( "Barbara won \n" ); document.write( "

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