document.write( "Question 1080562: A chemist needs a 30% acid solution. How much pure acid needs to be mixed with 5 milliliter a of a 10% acid solution to obtain the desired solution? \n" ); document.write( "
Algebra.Com's Answer #694676 by Fombitz(32388)\"\" \"About 
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Let X be the amount of pure acid,
\n" ); document.write( "\"5%2810%29%2BX%28100%29=%285%2BX%29%2830%29\"
\n" ); document.write( "\"5%2B10X=%285%2BX%293\"
\n" ); document.write( "\"5%2B10X=15%2B3X\"
\n" ); document.write( "\"7X=10\"
\n" ); document.write( "Solve for X.
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