document.write( "Question 345565: A pharmacist needs 20% boric acid solution. How much 60% boric acid solution must be added to 7.5 liters of an 8% boric acid solution to get the desired strength? \n" ); document.write( "

Algebra.Com's Answer #247188 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"A\"$ be the amount of 60% solution.
\n" ); document.write( " $\"60A%2B8%287.5%29=20%28A%2B7.5%29\"$
\n" ); document.write( " $\"60A%2B60=20A%2B150\"$
\n" ); document.write( " $\"40A=90\"$
\n" ); document.write( " $\"highlight%28A=9%2F4%29\"$ liters\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );