document.write( "Question 987293: A chemistry teacher needs to mix a 20% salt solution with a 90% salt solution to make 25 qt of a 48% salt solution. How many quarts of each solution should the teacher mix to get the desired result? \n" ); document.write( "

Algebra.Com's Answer #608034 by MathTherapy(10552) $\"\"$ $\"About$

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\n" ); document.write( "A chemistry teacher needs to mix a 20% salt solution with a 90% salt solution to make 25 qt of a 48% salt solution. How many quarts of each solution should the teacher mix to get the desired result?
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Let amount of 20% solution to be mixed, be T
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document.write( "Then amount of 90% solution to be mixed = 25 - T
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document.write( "We then get: .2T + .9(25 - T) = .48(25)
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document.write( ".2T + 22.5 - .9T = 12
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document.write( ".2T - .9T = 12 - 22.5 
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document.write( "- .7T = - 10.5
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document.write( "T, or amount of 20% solution to be mixed = , or  quarts
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document.write( "Amount of 90% solution to be mixed = 25 - 15, or  quarts \n" );
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