document.write( "Question 635395: Suppose you work in a lab. You need a 15% acid solution for a certain test, but your supplier only ships a 10% solution and a 30% solution. Rather than pay the hefty surcharge to have the supplier make a 15% solution, you decide to mix 10% solution with 30% solution, to make your own 15% solution. You need 10 liters of the 15% acid solution. How many liters of 10% solution and 30% solution should you use? \n" ); document.write( "

Algebra.Com's Answer #400289 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi,
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document.write( "needing 10 liters of the 15% acid solution... 
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document.write( "How many liters of 10% solution and 30% solution should you use?
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document.write( "Note:  y = 10L - x
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document.write( " .30x + .10(10-x) = .15·10      |May multiply thru by 100 first, if one wishes
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document.write( "            .20x = .5
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document.write( "               x = 2.5L of the 30%  and 7.5L of the 10%
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document.write( "and...
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