document.write( "Question 250376: how many milligrams of metal that contains 45% nickel must be combined of 6 milligrams of 100% nickel to get 78% nickel \n" ); document.write( "
Algebra.Com's Answer #185127 by drk(1908)![]() ![]() ![]() You can put this solution on YOUR website! This is a mixture problem. Here is the table: \n" ); document.write( "nickel . . . . . % . . . . .mg . . . . . %g \n" ); document.write( "45 . . . . . . .45 . . . . .g . . . . . 45g \n" ); document.write( "100 . . . . . . 100 . . . . 6 . . . . . 600 \n" ); document.write( "Mixture . . .. .78 . . . . g + 6 . . . .78g + 468 \n" ); document.write( "Now, in the right hand column, \n" ); document.write( "45g + 600 = 78g + 468 \n" ); document.write( "33g = 132 \n" ); document.write( "g = 4. \n" ); document.write( "4 mg of metal at 45%. \n" ); document.write( " \n" ); document.write( " |