document.write( "Question 100572: how much pure gold should be melted with 15 grams of 14-karat gold to produce 18-karat gold? \n" ); document.write( "
Algebra.Com's Answer #73444 by ankor@dixie-net.com(22740)![]() ![]() You can put this solution on YOUR website! how much pure gold should be melted with 15 grams of 14-karat gold to produce 18-karat gold? \n" ); document.write( ": \n" ); document.write( "Pure gold is 24 karat \n" ); document.write( ": \n" ); document.write( "Let x = amt of pure gold \n" ); document.write( ": \n" ); document.write( "A karat equation: \n" ); document.write( "14(15) + 24(x) = 18(x + 15) \n" ); document.write( "210 + 24x = 18x + 270 \n" ); document.write( "24x - 18x = 270 - 210 \n" ); document.write( "6x = 60 \n" ); document.write( "x = 10 grams of pure gold required \n" ); document.write( ": \n" ); document.write( ": \n" ); document.write( "Check solution of x = 10: \n" ); document.write( "14(15) + 24(10) = 18(25) \n" ); document.write( " |