document.write( "Question 58274: How many ounces of pure gold must be added to five ounces of something that is 1% gold in order that the mixture is 6% gold? \n" ); document.write( "
Algebra.Com's Answer #39997 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many ounces of pure gold must be added to five ounces of something that is 1% gold in order that the mixture is 6% gold? \n" ); document.write( "--------------- \n" ); document.write( "Let # of ounces of pure gold be \"x\".\r \n" ); document.write( "\n" ); document.write( "1% gold DATA: \n" ); document.write( "Amount = 5 ounces ; amount of gold is 0.01x ounces \n" ); document.write( "------------ \n" ); document.write( "100% gold DATA: \n" ); document.write( "Amount = x ounces ; amount of gold is x ounces \n" ); document.write( "------------ \n" ); document.write( "Mixture DATA: \n" ); document.write( "Amount = x+5 ounces; amount of gold is 0.06(x+5)=0.06x+0.3 ounces \n" ); document.write( "----------- \n" ); document.write( "EQUATION: \n" ); document.write( "gold + gold = gold \n" ); document.write( "0.01x + x = 0.06x+0.3 \n" ); document.write( "1.01x-0.06x = 0.3 \n" ); document.write( "0.95x=0.3 \n" ); document.write( "x=0.3158 ounces of 100% gold must be added \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |