document.write( "Question 1198206: A plane can fly 2300 mi east with the jet stream in the same time it
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Algebra.Com's Answer #831756 by ikleyn(52876) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "A plane can fly 2300 mi east with the jet stream in the same time it
\n" ); document.write( "takes to fly 1700 mi west into the jet stream. Determine the speed of the
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document.write( "Write the \"time equation\"\r\n" );
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document.write( "     = ,    (1)\r\n" );
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document.write( "where x is the speed of the jet stream.\r\n" );
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document.write( "From this equation\r\n" );
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document.write( "    2300*(500-x) = 1700*(500+x)\r\n" );
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document.write( "    2300*500 - 2300x = 1700*500 + 1700x\r\n" );
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document.write( "    2300*500 - 1700*500 = 2300x + 1700x\r\n" );
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document.write( "          600*500       =  4000x\r\n" );
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document.write( "             x          =   = 75  mi/hr  (rounded).    ANSWER\r\n" );
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document.write( "CHECK.  Left side of equation (1) is   = 4.00 hours;\r\n" );
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document.write( "        Right side of equation (1) is   = 4.00 hours.\r\n" );
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document.write( "        The answer is precisely correct.\r\n" );
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