document.write( "Question 1200263: A pilot flew a jet from City A to City B, a distance of 1500 mi. On the return trip, the average speed was 20% faster than the outbound speed. The round-trip took 7 h 20 min. What was the speed from City A to City B? \n" ); document.write( "
Algebra.Com's Answer #834347 by ikleyn(52803)\"\" \"About 
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\n" ); document.write( "A pilot flew a jet from City A to City B, a distance of 1500 mi.
\n" ); document.write( "On the return trip, the average speed was 20% faster than the outbound speed.
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document.write( "Let x be the speed from A to B, in miles per hour.\r\n" );
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document.write( "Then the speed from B to A is 1.2 x, according to the problem.\r\n" );
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document.write( "The flight time from A to B is \"1500%2Fx\"  hours.\r\n" );
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document.write( "The flight time from B to A is \"1500%2F%281.2x%29\" = \"1250%2Fx\" hours.\r\n" );
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document.write( "Total flight time for the round trip is  \"1500%2Fx\" + \"1250%2Fx\" = \"2750%2Fx\".\r\n" );
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document.write( "We are given that\r\n" );
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document.write( "    \"2750%2Fx\" = 7\"1%2F3\" hours = \"22%2F3\" hours.\r\n" );
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document.write( "It gives us x = \"2750%2F%28%2822%2F3%29%29\" = \"%282750%2A3%29%2F22\" = 375.\r\n" );
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document.write( "ANSWER.  The speed from A to B was 375 miles per hour.\r\n" );
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