document.write( "Question 791470: Jessica drove west at an average speed of 41 mph. Paul left from the same point in the opposite direction with an average speed of 46 mph. after Jessica had driven for 5 hours they were 389 miles apart. what is the number of hours Paul drove? \n" ); document.write( "

Algebra.Com's Answer #479621 by mananth(16946) $\"\"$ $\"About$

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Jessica drove west at an average speed of 41 mph. Paul left from the same point in the opposite direction with an average speed of 46 mph. after Jessica had driven for 5 hours they were 389 miles apart. what is the number of hours Paul drove?\r
\n" ); document.write( "\n" ); document.write( "Jessica speed = 41 mph
\n" ); document.write( "Jessica travels 41*5 = 205 miles in 5 hours.\r
\n" ); document.write( "\n" ); document.write( "That is the time Paul starts\r
\n" ); document.write( "\n" ); document.write( "They are 389 miles away after x hours of paul starting\r
\n" ); document.write( "\n" ); document.write( "But Jessica had already traveled 205 niles
\n" ); document.write( "difference = 389-205 = 184 miles . they drove together\r
\n" ); document.write( "\n" ); document.write( "combined speed = 41+46 = 87 mph
\n" ); document.write( "distance = 184 miles\r
\n" ); document.write( "\n" ); document.write( "so time taken to be that far away = 184/87\r
\n" ); document.write( "\n" ); document.write( "= 2.11 hours\r
\n" ); document.write( "\n" ); document.write( "Paul drives 2.11 hours
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