document.write( "Question 345476: A and B run at constant velocities along a circular track. The circumference of the track is 1320 meters. If they run in opposite directions, they meet every 2 minutes; if they run in the same direction, they are together every 22 minutes. Find their velocities. \n" ); document.write( "
Algebra.Com's Answer #247247 by ankor@dixie-net.com(22740)\"\" \"About 
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A and B run at constant velocities along a circular track.
\n" ); document.write( " The circumference of the track is 1320 meters.
\n" ); document.write( " If they run in opposite directions, they meet every 2 minutes;
\n" ); document.write( " if they run in the same direction, they are together every 22 minutes.
\n" ); document.write( " Find their velocities.
\n" ); document.write( ":
\n" ); document.write( "Find the sum of their velocities,
\n" ); document.write( "when they meet, they will have traveled a total of 1320 meters in two minutes
\n" ); document.write( "Speed = dist/time
\n" ); document.write( "(V1 + V2) = \"1320%2F2\"
\n" ); document.write( "V1 + V2 = 660 m/min
\n" ); document.write( ":
\n" ); document.write( "When they travel the same directions
\n" ); document.write( "V1 - V2 = \"1320%2F22\"
\n" ); document.write( "V1 - V2 = 60 m/min
\n" ); document.write( ":
\n" ); document.write( "Use elimination
\n" ); document.write( "V1 + V2 = 660
\n" ); document.write( "V1 - V2 = 60
\n" ); document.write( "-----------------addition eliminates V2
\n" ); document.write( "2V1 = 720
\n" ); document.write( "V1 = \"720%2F2\"
\n" ); document.write( "V1 = 360 m/sec
\n" ); document.write( "and
\n" ); document.write( "V2 = 660 - 360
\n" ); document.write( "V2 = 300 m/sec
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "We can confirm this using the same direction scenario
\n" ); document.write( "Faster runner travels 22 * 360 = 7920 meters
\n" ); document.write( "Slower runner travels 22 * 300 = 6600 meters
\n" ); document.write( "----------------------------------------------
\n" ); document.write( "difference is exactly 1 lap or 1320 meters
\n" ); document.write( "
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