document.write( "Question 474192: A lab assistant is asked to mix a 30% alcohol solution with 21 liters of an 80% alcohol solution to make a 60% alcohol solution. How many liters of the 30% alcohol solution should be used? \n" ); document.write( "

Algebra.Com's Answer #325213 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "Let x represent the amount of the 30% solution
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document.write( "MIXING
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document.write( " .30x + .80*21L = .60(x+21L)
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document.write( "          .20*21L = .30x
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document.write( "                 x = .20*23L/.3 = 14L, the amount of the 30% solution\r
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