document.write( "Question 558821: how much of a (n) 90% orange juice drink must be mixed with 16 gallons of a 30% orange juice drink to obtain a mixture that is 50% orange juice? \n" ); document.write( "
Algebra.Com's Answer #363210 by mananth(16946)\"\" \"About 
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percent ---------------- quantity
\n" ); document.write( "Orange juice type I 30----------------16 gallons
\n" ); document.write( "Orange juice type II 90----------------x gallons
\n" ); document.write( "Mixture 50----------------20+x gallons
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\n" ); document.write( "30*16+90x=50(20+x)
\n" ); document.write( "480+90x =1000+50x
\n" ); document.write( "90x-50x=1000-480
\n" ); document.write( "40 x = 520
\n" ); document.write( "/ 40
\n" ); document.write( "x= 13 gallons of Orange juice type II
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