document.write( "Question 341602: A jeweler has 2 rings, each weighing 24 g, made of an alloy of 5% silver and 95% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 80%. How much silver should she add? \n" ); document.write( "
Algebra.Com's Answer #244617 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A jeweler has 2 rings, each weighing 24 g, made of an alloy of 5% silver and 95% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 80%. How much silver should she add? \n" ); document.write( "-------------------- \n" ); document.write( "Equation: \n" ); document.write( "silver + silver = silver \n" ); document.write( "0.05*48 + 1.00s = 0.20(48+s) \n" ); document.write( "Multiply thru by 100 to get: \n" ); document.write( "5*48 + 100s = 20*48+20s \n" ); document.write( "80s = 15*48 \n" ); document.write( "s = 9 grams (amt. of pure silver she needs to add to the mix) \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |