document.write( "Question 1157943: A private jet flies the same distance in 15 hours that a commercial jet flies in 10 hours. If the speed of the commercial jet was 98mph less than 2 times the speed of the private jet, find the speed of each jet. \n" ); document.write( "

Algebra.Com's Answer #780851 by ikleyn(52788) $\"\"$ $\"About$

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document.write( "From the condition, you have this equation\r\n" );
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document.write( "    15*P = 10*(2P - 98)\r\n" );
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document.write( "where P is the speed of the Private, and (2P-98) is the speed of the commercial jet.\r\n" );
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document.write( "Simplify and solve\r\n" );
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document.write( "    15P = 20P - 980\r\n" );
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document.write( "    980 = 20P - 15P\r\n" );
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document.write( "    5P = 980\r\n" );
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document.write( "     P =  =  196.\r\n" );
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document.write( "ANSWER.  Private jet speed is 196 mph; Commercial jet speed is  2*196-98 = 294 mph.\r\n" );
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