document.write( "Question 904669: Pure acid is to be added to a 10% solution to obtqin 90L of 14% solution. What amounts of each should be used? How many liters of 100% pure acid should be used to make this solution? \n" ); document.write( "
Algebra.Com's Answer #548847 by josgarithmetic(39617)\"\" \"About 
You can put this solution on YOUR website!
The general solution for this kind of problem is thoroughly discussed here:\r
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\n" ); document.write( "\n" ); document.write( "http://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev\r
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\n" ); document.write( "\n" ); document.write( "THAT was not the lesson needed;
\n" ); document.write( "but THIS was what I meant:
\n" ); document.write( "http://www.algebra.com/my/Mixtures%3A-All-in-Symbols.lesson?content_action=show_dev
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