document.write( "Question 810838: how much of a(n) 90% orange juice drink must be mixed with 12 gallons of a 20% orange juice drink to obtain a mixture that is 50% orange juice \n" ); document.write( "

Algebra.Com's Answer #488460 by richwmiller(17219) $\"\"$ $\"About$

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.9x+.2(12)=.5(x+12)
\n" ); document.write( "x=9 gallons \n" ); document.write( "

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