document.write( "Question 1180566: A gasoline refinery mixes different types of gasoline. How many gallons of grade A worth 17.60 per gallon must be mixed with grade B worth 19.20 per gallon and grade C at 22.40 per gallon to produce 10 gallons of gas that will sell for 19.52 per gallon if equal amount of grade A and C are mixed?\r
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Algebra.Com's Answer #810292 by Edwin McCravy(20056) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "                |Price |\r\n" );
document.write( "                | per  |Money |\r\n" );
document.write( "        |Gallons|Gallon|Value |\r\n" );
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document.write( "Grade A |   x   |17.60 |17.60x| \r\n" );
document.write( "Grade B |   y   |19.20 |19.20y|\r\n" );
document.write( "Grade C |   x   |22.40 |22.40x|\r\n" );
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document.write( "Mixture |  10   |19.52 |195.20|\r\n" );
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document.write( "Equations:\r\n" );
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document.write( "Solve by substitution or elimination.\r\n" );
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document.write( "Answer: 2 gallons each of grades A and C, and 6 gallons of grade B\r\n" );
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document.write( "Edwin

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