document.write( "Question 1157785: Two planes leave at 10 AM from airports that are 1350 kilometers apart and fly towards each other at speeds of 400 km/h and 500 km/h. At what time will they pass each other? \n" ); document.write( "
Algebra.Com's Answer #780686 by ikleyn(52787)\"\" \"About 
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document.write( "Let \" t \" be the time under the question.\r\n" );
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document.write( "Then you have this equation\r\n" );
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document.write( "    400t + 500t = 1350,\r\n" );
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document.write( "saying that the total distance is the sum of partial distances.\r\n" );
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document.write( "Simplify and solve for t\r\n" );
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document.write( "    900t = 1350\r\n" );
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document.write( "    t    = \"1350%2F900\" = 1.5 hours.\r\n" );
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document.write( "ANSWER. 1 hour and 30 minutes.\r\n" );
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\n" ); document.write( "\n" ); document.write( "See introductory lessons on Travel and Distance problems\r
\n" ); document.write( "\n" ); document.write( "    - Travel and Distance problems \r
\n" ); document.write( "\n" ); document.write( "    - Travel and Distance problems for two bodies moving in opposite directions \r
\n" ); document.write( "\n" ); document.write( "    - Travel and Distance problems for two bodies moving in the same direction (catching up)\r
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\n" ); document.write( "\n" ); document.write( "You will find the solutions of many similar problems there.\r
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\n" ); document.write( "\n" ); document.write( "Read them and learn once and for all from these lessons on how to solve simple Travel and Distance problems.\r
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\n" ); document.write( "\n" ); document.write( "Become an expert in this area.\r
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