document.write( "Question 819356: Alan, Fred, and Mark are going to buy a computer that cost $540. If Alan pays $40 more than Fred and Fred pays twice as much as Mark, then how much does Mark pay? \n" ); document.write( "

Algebra.Com's Answer #493048 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Alan, Fred, and Mark are going to buy a computer that cost $540. 
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document.write( "If Alan pays $40 more than Fred and 
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document.write( "Fred pays twice as much as Mark, then how much does Mark pay?
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document.write( "Mark  x
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document.write( "Fred  2x
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document.write( "Alan  2x + $40
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document.write( "  x + 2x + (2x+$40) = $540
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document.write( "              5x = $500
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document.write( "               x = $100, the amount Mark pays \n" );
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