document.write( "Question 253878: What amounts of 70% pure silver and 75% pure silver should be mixed to obtain 14 grams of 70% pure silver? \n" ); document.write( "
Algebra.Com's Answer #186222 by richwmiller(17219)\"\" \"About 
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I don't think it can be done with .75 \r
\n" ); document.write( "\n" ); document.write( ".70x+.75*(14-x)=.7*14
\n" ); document.write( "The solution says to use 14 grams of 70%
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