document.write( "Question 1126499: A pharmacist wishes to mix a solution that is 6% Minoxidil. She has on hand 60 ml of a 3% solution and wishes to add some 8% solution to obtain the desired 6% solution. How much 8% solution should she add? \n" ); document.write( "

Algebra.Com's Answer #742834 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+a+\"$ = ml of 8% solution needed
\n" ); document.write( " $\"+.08a+\"$ = ml of minoxidil in 8% solution
\n" ); document.write( " $\"+.03%2A60+=+1.8+\"$ = ml of minoxidil in 3% solution
\n" ); document.write( "------------------------
\n" ); document.write( " $\"+%28+1.8+%2B+.08a+%29+%2F+%28+60+%2B+a+%29+=+.06+\"$
\n" ); document.write( " $\"+1.8+%2B+.08a+=+.06%2A%28+60+%2B+a+%29+\"$
\n" ); document.write( " $\"+1.8+%2B+.08a+=+3.6+%2B+.06a+\"$
\n" ); document.write( " $\"+.02a+=+1.8+\"$
\n" ); document.write( " $\"+a+=+90+\"$
\n" ); document.write( "90 ml of 8% solution needed
\n" ); document.write( "--------------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+1.8+%2B+.08%2A90+%29+%2F+%28+60+%2B+90+%29+=+.06+\"$
\n" ); document.write( " $\"+%28+1.8+%2B+7.2+%29+%2F+150+=+.06+\"$
\n" ); document.write( " $\"+9+=+.06%2A150+\"$
\n" ); document.write( " $\"+9+=+9+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );