document.write( "Question 1011116: pure acid is to be added to a 20% acid solution to obtain 40L of a 40% acid solution. What amounts of each should be used? \n" ); document.write( "
Algebra.Com's Answer #626684 by josgarithmetic(39617)\"\" \"About 
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v, how much of the pure acid to add.\r
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\n" ); document.write( "\n" ); document.write( "\"%2820%2840-v%29%2B100%2Av%29%2F40=40\"\r
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\n" ); document.write( "\n" ); document.write( "Solve for v, and evaluate 40-v.
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