document.write( "Question 1011852: I'm a 66 year old man with a debate with my wife. I say the mixture would be 4 to 1 she disagrees. A 40% solution is to be mixed with water how much water is needed to make the solution 10%? \n" ); document.write( "

Algebra.Com's Answer #627640 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Assume that you have 1 cup of 40% solution.
\n" ); document.write( "You add x cups of water (0% solution).
\n" ); document.write( "Look at the concentrations.
\n" ); document.write( " $\"0%2Ax%2B40%2A1=10%2A%28x%2B1%29\"$
\n" ); document.write( " $\"40=10x%2B10\"$
\n" ); document.write( " $\"10x=30\"$
\n" ); document.write( " $\"x=3\"$
\n" ); document.write( "So it would be 3:1.
\n" ); document.write( " \n" ); document.write( "

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