document.write( "Question 363470: how much water should be added to 414 ounces of a 21% alcohol solution to get an 18% alcohol solution\r
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document.write( "i set it up this way---.21(414)+W=.18(414 + W) but i came up with a neg answer\r
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document.write( "86.94 + W = 74.52 + .18W\r
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document.write( "12.42 = -.82W or .82W = -12.42 === -.1546\r
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document.write( "I don't think the answer should be negative. \n" );
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Algebra.Com's Answer #259161 by mananth(16946)![]() ![]() You can put this solution on YOUR website! how much water should be added to 414 ounces of a 21% alcohol solution to get an 18% alcohol solution \n" ); document.write( "how much water ------------0% alcohol-----------x ounces \n" ); document.write( "alcohol ------------------ 21% alcohol----------414 ounces \n" ); document.write( "alcohol------------------- 18% alcohol----------(x+414)ounces \n" ); document.write( ".. \n" ); document.write( "concentration equation \n" ); document.write( "... \n" ); document.write( "0+0.21*414=0.18(x+414) \n" ); document.write( "0+86.94=0.18x+74.52 \n" ); document.write( "0.18x=86.94-74.52 \n" ); document.write( "0.18x=12.42 \n" ); document.write( "x=12.42/0.18 \n" ); document.write( "x= 69 ounces of water \n" ); document.write( ".. \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |