document.write( "Question 673813: A Pharmacist needs 500 millilters of a 20% phenobarbital solution but only has 5% and 25% phenobarbital solutions available. Find how many milliliters of each solution he should mix to get the desired solution. \n" ); document.write( "

Algebra.Com's Answer #418898 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
\n" );
document.write( "Hi,
\n" );
document.write( "Mixing Algebraically
\n" );
document.write( " .05(500-x) + .25x = .20·500ml
\n" );
document.write( "       .20x = .15· 500ml
\n" );
document.write( "          x = 375mm, amount of 25%  and 125ml of the 5% \n" );
document.write( "

\n" );