document.write( "Question 376654: Please help me with this: How much 12-karat (50%) gold must be mixed with pure gold to obtain 60 grams of 16-karat (66.6667%) gold? The mass of pure gold is not given. \n" ); document.write( "
Algebra.Com's Answer #267932 by mananth(16946)![]() ![]() You can put this solution on YOUR website! How much 12-karat (50%) gold must be mixed with pure gold to obtain 60 grams of 16-karat (66.6667%) gold? The mass of pure gold is not given. \n" ); document.write( ".. \n" ); document.write( "12-karat (50%) gold.............x grams \n" ); document.write( "pure gold 100% ................60-x grams \n" ); document.write( "to obtain 66.6667%............. 60 grams \n" ); document.write( "... \n" ); document.write( "50x+100(60-x)=66.6667*60 \n" ); document.write( ".. \n" ); document.write( "50x +6000-100x=4000 ( rounded off) \n" ); document.write( ".. \n" ); document.write( "-50x=-6000+4000 \n" ); document.write( "-50x=-2000 \n" ); document.write( "/-50 \n" ); document.write( "x=40 grams of 50% gold is to be mixed. \n" ); document.write( "... \n" ); document.write( "m.annath@hotmail.ca \n" ); document.write( " |