document.write( "Question 1006734: How many liters of pure alcohol must be added to 7 liters of a 84% solution of alcohol to make a 93% solution? \n" ); document.write( "

Algebra.Com's Answer #622812 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = liters of pure alcohol to be added
\n" ); document.write( " $\"+.84%2A7+=+5.88+\"$ liters of alcohol in 84% solution
\n" ); document.write( "----------------------
\n" ); document.write( " $\"+%28+x+%2B+5.88+%29%2F+%28+x+%2B+7+%29+=+.93+\"$
\n" ); document.write( " $\"+x+%2B+5.88+=+.93%2A%28+x+%2B+7+%29+\"$
\n" ); document.write( " $\"+x+%2B+5.88+=+.93x+%2B+6.51+\"$
\n" ); document.write( " $\"+.07x+=+.63+\"$
\n" ); document.write( " $\"+x+=+9+\"$
\n" ); document.write( "9 liters of alcohol must be added
\n" ); document.write( "--------------
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+x+%2B+5.88+%29%2F+%28+x+%2B+7+%29+=+.93+\"$
\n" ); document.write( " $\"+%28+9+%2B+5.88+%29%2F+%28+9+%2B+7+%29+=+.93+\"$
\n" ); document.write( " $\"+14.88+%2F+16+=+.93+\"$
\n" ); document.write( " $\"+14.88+=+14.88+\"$
\n" ); document.write( "OK \n" ); document.write( "

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