document.write( "Question 263559: 5 liters of a 4 % solution must be mixed with a 10% solution to get a 6% solution. How many liters of the 10 % solution must be added. \n" ); document.write( "

Algebra.Com's Answer #194207 by drk(1908) $\"\"$ $\"About$

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We have a mixture problem. Here is a table based on the given information
\n" ); document.write( "solution . . . . . . . % . . . . . . . .L . . . . . . . . . %L
\n" ); document.write( "4% . . . . . . . . . . . 4 . . . . . . . 5 . . . . . . . . . .20
\n" ); document.write( "10% . . . . . . . . . . 10 . . . . . . x . . . . . . . . .10x
\n" ); document.write( "6% . . . . . . . . . . . 6 . . . . . . .x + 5 . . . . . . 6x + 30
\n" ); document.write( "look at column three, we get
\n" ); document.write( " $\"20+%2B+10x+=+6x+%2B+30\"$
\n" ); document.write( "subtract 6x and subtract 20 to get
\n" ); document.write( " $\"4x+=+10\"$
\n" ); document.write( "so,
\n" ); document.write( " $\"x+=+2.5\"$
\n" ); document.write( "you need 2.5 liters @ 10%. \n" ); document.write( "

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