document.write( "Question 148284: A student mixes distilled water with a 90% solution of acid to produce a 50% solution. If 5 liters of water is used how much 50% solution is produced?\r
\n" ); document.write( "\n" ); document.write( "I know the answer is 11.25 but I am unable to figure out how they got to that answer. \r
\n" ); document.write( "\n" ); document.write( "I have tried setting water as x and 5 then acid as 90% and solution as 50% but any way I try does not get to the answer.\r
\n" ); document.write( "\n" ); document.write( "Help please!
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Algebra.Com's Answer #108695 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A student mixes distilled water with a 90% solution of acid to produce a 50% solution. If 5 liters of water is used how much 50% solution is produced?
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\n" ); document.write( "Your equation should track the water OR track the acid.
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\n" ); document.write( "Water EQUATION: 5 + 0.10x = 0.50(5+x)
\n" ); document.write( "5+0.10x = 2.5+0.5x
\n" ); document.write( "0.4x = 2.5
\n" ); document.write( "x = 6.25 liters of 50% solution
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\n" ); document.write( "Acid EQUATION:
\n" ); document.write( "0*5 + 0.9x = 0.50(5+x)
\n" ); document.write( "0.9x = 2.5 + 0.5x
\n" ); document.write( "0.4x = 2.5
\n" ); document.write( "x = 6.25 liters of 50% solution
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\n" ); document.write( "You don't have to do both; one or the other.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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