document.write( "Question 990824: One alloy contains 80% gold (by weight)and another alloy contains 55% gold.how many grams of each alloy should be combined to make 40g of an alloy that contains 70% gold. \n" ); document.write( "
Algebra.Com's Answer #610804 by Alan3354(69443)\"\" \"About 
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One alloy contains 80% gold (by weight)and another alloy contains 55% gold.how many grams of each alloy should be combined to make 40g of an alloy that contains 70% gold.
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\n" ); document.write( "\n" ); document.write( "e = amount of 80%
\n" ); document.write( "f = amount of 55%
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\n" ); document.write( "e + f = 40 (total alloy)
\n" ); document.write( "80e + 55f = 70*40 (total gold)
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