document.write( "Question 771536: Please help me with this word problem i'm having problems setting up the equations:\r
\n" ); document.write( "\n" ); document.write( "A gourmet shop wants to mix coffee beans that cost $3.00 per pound with coffee beans that cost $4.25 per pound to create 25 pounds of a new blend that costs $3.50 per pound. Find the number of pounds of each needed to produce a new blend.\r
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\n" ); document.write( "\n" ); document.write( "This is what I have so far because I'm very unsure of what to do:\r
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Algebra.Com's Answer #470270 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!
3x+4.25y=87.5
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document.write( "Solve the second equation for x\r\n" );
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document.write( "                 x = 25 - y\r\n" );
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document.write( "Substitute (25 - y) for x in the first equation\r\n" );
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document.write( " 3(25 - y) + 4.25y = 87.5\r\n" );
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document.write( "   75 - 3y + 4.25y = 87.5\r\n" );
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document.write( "        75 + 1.25y = 87.5\r\n" );
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document.write( "             1.25y = 12.5\r\n" );
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document.write( "                 y = \r\n" );
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document.write( "                 y = 10\r\n" );
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document.write( "Substitute 10 for y in\r\n" );
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document.write( "                 x = 25 - y\r\n" );
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document.write( "                 x = 25 - 10\r\n" );
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document.write( "                 x = 15\r\n" );
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document.write( "Edwin

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