document.write( "Question 148237: How do I set up the following word problem into a mathematical equation:\r
\n" ); document.write( "\n" ); document.write( "A customer walks into an electronics store and buys five MP3 players and eight sets of headphones, paying $840. A second customer buys three MP3 players and four sets of headphones, and pays $480. How much does an MP3 player cost? How much does a set of headphones cost?
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Algebra.Com's Answer #108642 by Edwin McCravy(20063) $\"\"$ $\"About$

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How do I set up the following word problem into a mathematical equation:
\n" ); document.write( "A customer walks into an electronics store and buys five MP3 players and eight sets of headphones, paying $840. A second customer buys three MP3 players and four sets of headphones, and pays $480. How much does an MP3 player cost? How much does a set of headphones cost?
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document.write( "Five times the cost of an MP3 player PLUS eight times\r\n" );
document.write( "the cost of a set of headphones EQUALS $840.\r\n" );
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document.write( "                       5M + 8H = 840\r\n" );
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document.write( "Three times the cost of an MP3 player PLUS four times \r\n" );
document.write( "the cost of a set of headphones EQUALS $480.\r\n" );
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document.write( "                       3M + 4H = 480\r\n" );
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document.write( "So we have this system of equations:\r\n" );
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document.write( "                       5M + 8H = 840\r\n" );
document.write( "                       3M + 4H = 480\r\n" );
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document.write( "Can you solve the system of equations by elimination or \r\n" );
document.write( "substitution? If not post again asking how.\r\n" );
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document.write( "Answer M = $120,  H = $30\r\n" );
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document.write( "Edwin

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