document.write( "Question 1128477: How many ounces of a 5 % alcohol solution must be mixed with 18 ounces of a 10 % alcohol solution to make a 6 % alcohol solution? \n" ); document.write( "

Algebra.Com's Answer #744938 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = ounces of 5% solution needed
\n" ); document.write( " $\"+.1%2A18+=+1.8+\"$ ounces of alcohol in 10% solution
\n" ); document.write( " $\"+%28+.05x+%2B+1.8+%29+%2F+%28+x+%2B+18+%29+=+.06+\"$
\n" ); document.write( " $\"+.05x+%2B+1.8+=+.06%2A%28+x+%2B+18+%29+\"$
\n" ); document.write( " $\"+.05x+%2B+1.8+=+.06x+%2B+1.08+\"$
\n" ); document.write( " $\"+.01x+=+.72+\"$
\n" ); document.write( " $\"+x+=+72+\"$
\n" ); document.write( "72 ounces of 5% solution are needed
\n" ); document.write( "--------------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+.05%2A72+%2B+1.8+%29+%2F+%28+72+%2B+18+%29+=+.06+\"$
\n" ); document.write( " $\"+%28+3.6+%2B+1.8+%29+%2F+90+=+.06+\"$
\n" ); document.write( " $\"+5.4+=+5.4+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );