document.write( "Question 961974: You have 0.35 liters of an acid solution whose acid concentration is 15%. How many liters of pure water should be added to lower the concentration to 7%? \n" ); document.write( "

Algebra.Com's Answer #854561 by josgarithmetic(39832) $\"\"$ $\"About$

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w, amount of water to add, assuming as volume (liters)\r
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\n" ); document.write( "\n" ); document.write( " $\"%280.35%2A0.15%29%2F%280.35%2Bw%29=0.07\"$
\n" ); document.write( "Solve!\r
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\n" ); document.write( "\n" ); document.write( " $\"0.07%28w%2B0.35%29=0.35%2A0.15\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"w%2B0.35=%2835%2F7%29%280.15%29\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"w=-0.35%2B5%2A0.15\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28w=0.4%29\"$ \n" ); document.write( "

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