document.write( "Question 640219: A gallon of Del Monte white vinegar is labeled 5% acidity. How many fluid ounces of pure acid must be added to get 6% acidity? Could you please help me to answer this? \n" ); document.write( "

Algebra.Com's Answer #403070 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = ounces of pure acid needed
\n" ); document.write( "A gallon is $\"128\"$ US fluid ounces
\n" ); document.write( "given:
\n" ); document.write( " $\"+.05%2A128+=+6.4+\"$ ounces of acid in gallon of vinegar
\n" ); document.write( " $\"+%28+6.4+%2B+x+%29+%2F+%28+128+%2B+x+%29+=+.06+\"$
\n" ); document.write( " $\"+6.4+%2B+x+=+.06%2A%28+128+%2B+x+%29+\"$
\n" ); document.write( " $\"+6.4+%2B+x+=+.96+%2B+.06x+\"$
\n" ); document.write( " $\"+x+-+.06x+=+7.68+-+6.4+\"$
\n" ); document.write( " $\"+.94x+=+1.28+\"$
\n" ); document.write( " $\"+x+=+1.362+\"$
\n" ); document.write( "1.362 ounces of pure acid are needed
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+6.4+%2B+x+%29+%2F+%28+128+%2B+x+%29+=+.06+\"$
\n" ); document.write( " $\"+%28+6.4+%2B+1.362+%29+%2F+%28+128+%2B+1.362+%29+=+.06+\"$
\n" ); document.write( " $\"+7.762+%2F+129.362+=+.06+\"$
\n" ); document.write( " $\"+7.762+=+.06%2A129.362+\"$
\n" ); document.write( " $\"+7.762+=+7.762+\"$
\n" ); document.write( "OK
\n" ); document.write( "If you don't use US fluid ounces, just change
\n" ); document.write( "that gallons to ounces conversion \n" ); document.write( "

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