document.write( "Question 376748: How do I dilute a 90% solution to 70%? Example: I have 8oz. of 90% solution. How much water do I add to make it a 70% solution? \n" ); document.write( "
Algebra.Com's Answer #268001 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Let A be the amount of pure water (0% solution).
\n" ); document.write( "\"0%28A%29%2B90%288%29=70%28A%2B8%29\"
\n" ); document.write( "\"720=70A%2B560\"
\n" ); document.write( "\"70A=160\"
\n" ); document.write( "\"highlight%28A=16%2F7%29\" ounces
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