document.write( "Question 788164: Keith wants to create a drink that is 40% juice.How much of 10% solution should he add to 10 milliliters of 100%juice to obtain 40%mix? \n" ); document.write( "

Algebra.Com's Answer #478425 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let $\"+x+\"$ = ml of 10% solution to be added
\n" ); document.write( " $\"+.1x+\"$ = ml of juice in 10% solution
\n" ); document.write( " $\"+10+\"$ ml = ml of juice in 100% solution
\n" ); document.write( "-----------------------------------
\n" ); document.write( " $\"+%28+.1x+%2B+10+%29+%2F+%28+x+%2B+10+%29+=+.4+\"$
\n" ); document.write( " $\"+.1x+%2B+10+=+.4%2A%28+x+%2B+10+%29+\"$
\n" ); document.write( " $\"+.1x+%2B+10+=+.4x+%2B+4+\"$
\n" ); document.write( " $\"+.3x+=+6+\"$
\n" ); document.write( " $\"+x+=+20+\"$
\n" ); document.write( "20 ml of 10% solution needs to be added
\n" ); document.write( "check:
\n" ); document.write( " $\"+%28+.1x+%2B+10+%29+%2F+%28+x+%2B+10+%29+=+.4+\"$
\n" ); document.write( " $\"+%28+.1%2A20+%2B+10+%29+%2F+%28+20+%2B+10+%29+=+.4+\"$
\n" ); document.write( " $\"+%28+2+%2B+10+%29+%2F+30+=+.4+\"$
\n" ); document.write( " $\"+12+=+.4%2A30+\"$
\n" ); document.write( " $\"+12+=+12+\"$
\n" ); document.write( "OK \n" ); document.write( "

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