document.write( "Question 1189755: How much water should be added to 30 mL of 19% alcohol solution to reduce the concentration to 15%? \n" ); document.write( "

Algebra.Com's Answer #821202 by josgarithmetic(39620) $\"\"$ $\"About$

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Before adding the water,
\n" ); document.write( " $\"%28%280.19%29%2830%29%29%2F30=0.19\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Adding x mL water to reduce concentration,
\n" ); document.write( " $\"%280.19%2A30%29%2F%28x%2B30%29=0.15\"$
\n" ); document.write( "The volume changes but not the pure amount of alcohol.
\n" ); document.write( "Solve this for x. \n" ); document.write( "

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