document.write( "Question 355016: one alloy contains 80% gold (in weight) and another alloy contains 55% gold. how many grams of each alloy should be contained to make a 40kg of an alloy that contains 70% gold? \n" ); document.write( "
Algebra.Com's Answer #253605 by mananth(16946)\"\" \"About 
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80% gold (in weight) let this be x kg
\n" ); document.write( "another alloy contains 55% gold. this will be 40-x kg
\n" ); document.write( "Mix 40kg of an alloy that contains 70% gold?
\n" ); document.write( "..
\n" ); document.write( "80x+55(40-x)=40*70
\n" ); document.write( "80x+2200-55x=2800
\n" ); document.write( "25x=2800-2200
\n" ); document.write( "25x=600
\n" ); document.write( "x=600/25
\n" ); document.write( "x= 24 kg ----- 80% gold
\n" ); document.write( "balance 16 kgs will be 55% gold alloy
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\n" ); document.write( "m.ananth@hotmail.ca
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