document.write( "Question 971955: A metal worker has a metal alloy that is 30% copper and another alloy that is 80% copper. How many kilograms of each alloy should the metalworker combine to creat 60 kilograms of a 51% copper alloy? \n" ); document.write( "
Algebra.Com's Answer #594382 by lwsshak3(11628)![]() ![]() ![]() You can put this solution on YOUR website! A metal worker has a metal alloy that is 30% copper and another alloy that is 80% copper. How many kilograms of each alloy should the metalworker combine to creat 60 kilograms of a 51% copper alloy? \n" ); document.write( "let x=amt of 30% copper alloy to combine \n" ); document.write( "60-x=amt of 80% copper alloy to combine \n" ); document.write( ".. \n" ); document.write( "30%x+80%(60-x)=51%*60 \n" ); document.write( ".30x+40-.80x=30.6 \n" ); document.write( ".50x=9.4 \n" ); document.write( "x=50.6 \n" ); document.write( "How many kilograms of each alloy should the metalworker combine? \n" ); document.write( "30% copper alloy: 9.4 kg \n" ); document.write( "80% copper alloy: 50.6 kg \n" ); document.write( " |