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)\"\" \"About 
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( "
\n" );