document.write( "Question 1197846: a computer store sells two models of monitors. model a sells for $355 and model b sells for $465. if a total of 120 monitors were sold for $47880, how many of each type were sold?
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Algebra.Com's Answer #831281 by ikleyn(52786) $\"\"$ $\"About$

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document.write( "Let x be the number of the $465 panels;\r\n" );
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document.write( "then 120-x is the number of the $355 panels.\r\n" );
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document.write( "Write the total revenue equation\r\n" );
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document.write( "    465x + 355*(120-x) = 47880.\r\n" );
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document.write( "Simplify and find x\r\n" );
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document.write( "    465x + 355*120 - 355x = 47880\r\n" );
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document.write( "         110x             = 47880 - 355*120\r\n" );
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document.write( "         110x             =      5280\r\n" );
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document.write( "            x             =      5280/110 = 48.\r\n" );
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document.write( "ANSWER.  48 monitors at $465 and the rest, 120 - 48 = 72 monitors at $355.\r\n" );
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