document.write( "Question 662494: How many grams of an alloy that is 70% gold should be melted with 20 grams of an alloy that is 10% gold to produce an alloy that is 60% gold? \n" ); document.write( "
Algebra.Com's Answer #412308 by stanbon(75887) ![]() You can put this solution on YOUR website! How many grams of an alloy that is 70% gold should be melted with 20 grams of an alloy that is 10% gold to produce an alloy that is 60% gold? \n" ); document.write( "-------- \n" ); document.write( "Rwusyionz; \n" ); document.write( "gold + gold = gold \n" ); document.write( "0.7x + 0.10*20 = 0.60(x+20) \n" ); document.write( "----- \n" ); document.write( "70x + 10*20 = 60x + 60*20 \n" ); document.write( "10x = 50*20 \n" ); document.write( "x = 100 grams (amt of 70% alloy needed for the mix) \n" ); document.write( "========================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |