document.write( "Question 1099437: How many g of gold should a coin of 59% gold be it when combined with a 9 g pure gold necklace it forms a metal that is 74% gold? \n" ); document.write( "
Algebra.Com's Answer #713908 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! Let g be the weight of the coin, which is 59% gold. Then: \n" ); document.write( ".59g + 9=0.74(g+9) \n" ); document.write( ".59g+9=0.74g+6.66 \n" ); document.write( ".15g=2.34 \n" ); document.write( "g=15.6 gm as the weight of the coin \n" ); document.write( "☺☺☺☺ \n" ); document.write( " |