document.write( "Question 1169906: A chemist has two alloys, one of which is 20% gold and 15% lead and the other which is 30% gold and 50% lead. How many grams of each of the two alloys should be used to make an alloy that contains 118 g of gold and 110.5 g of lead? \n" ); document.write( "

Algebra.Com's Answer #794758 by ikleyn(52921) $\"\"$ $\"About$

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document.write( "Mix  x grams of the first alloy with  y grams of the second alloy.\r\n" );
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document.write( "You have then these 2 equations in 2 unknowns\r\n" );
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document.write( "    0.2x  + 0.3y = 118    grams of gold    (1)\r\n" );
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document.write( "    0.15x + 0.5y = 110.5  grams of lead    (2)\r\n" );
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document.write( "Solve the equations by any way you want (you know, you like).\r\n" );
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document.write( "ANSWER.  470 grams of the 1-st alloy and 80 grams of the 2-nd alloy.\r\n" );
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