document.write( "Question 452936: a 10% and a 20% salt solution are combined to make 12 gallons of 15% salt solution. How much of each strength solution is required?
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Algebra.Com's Answer #853382 by josgarithmetic(39732) $\"\"$ $\"About$

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6 gallons of each. Arithmetic steps should not be necessary, since 15% is exactly in the middle of 10 and 20. \n" ); document.write( "

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