document.write( "Question 27788: How many kilograms of zinc that is 33% pure should be mixed with 12 kilograms of alloy that is 45% pure to make an alloy that is 39% pure zinc? \n" ); document.write( "
Algebra.Com's Answer #15125 by Paul(988)![]() ![]() ![]() You can put this solution on YOUR website! 0.33x+0.45(12)=0.39(x+12) \n" ); document.write( "0.33x+5.4=0.39x+4.68 \n" ); document.write( "-0.06x=-0.72 \n" ); document.write( "x=12\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Hence, about 12 solution must be added. \n" ); document.write( "Paul. \n" ); document.write( " |