document.write( "Question 373837: I have 60 mL of a 10% minoxidil solution. How many mL of alcohol would I need to add to the 60 mL of minoxidil to reduce the strength by 1%? 2.5%? \n" ); document.write( "

Algebra.Com's Answer #266056 by josmiceli(19441) $\"\"$ $\"About$

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Let $\"x\"$ = ml of alcohol to be added
\n" ); document.write( "given:
\n" ); document.write( "ml of minoxidil in 10% solution:
\n" ); document.write( " $\".1%2A60+=+6\"$ ml
\n" ); document.write( " $\"6%2F%2860+%2B+x%29+=+.09\"$
\n" ); document.write( " $\"6+=+.09%2A%2860+%2B+x%29\"$
\n" ); document.write( " $\"6+=+5.4+%2B+.09x\"$
\n" ); document.write( " $\".09x+=+.6\"$
\n" ); document.write( " $\"x+=+6.667\"$
\n" ); document.write( "6.667 ml of alcohol need to be added
\n" ); document.write( "to reduce the strength by 1%
\n" ); document.write( "and
\n" ); document.write( " $\"6%2F%2860+%2B+x%29+=+.075\"$
\n" ); document.write( " $\"6+=+.075%2A%2860+%2B+x%29\"$
\n" ); document.write( " $\"6+=+4.5+%2B+.075x\"$
\n" ); document.write( " $\".075x+=+1.5\"$
\n" ); document.write( " $\"x+=+20\"$
\n" ); document.write( "20 ml of alcohol need to be added
\n" ); document.write( "to reduce the strength by 2.5% \n" ); document.write( "

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