document.write( "Question 716174: I need to know how to calculate a mixture formula. I have a 5-gallon premixed solution of 40%. I need to dilute the solution to 150-gallons of 8% solution. How much water and how much pre-mixed solution is required for the dilution and how is this calculated?\r
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Algebra.Com's Answer #439825 by ankor@dixie-net.com(22740)\"\" \"About 
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I need to know how to calculate a mixture formula.
\n" ); document.write( " I have a 5-gallon premixed solution of 40%.
\n" ); document.write( " I need to dilute the solution to 150-gallons of 8% solution.
\n" ); document.write( " How much water and how much pre-mixed solution is required for the dilution and how is this calculated?
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\n" ); document.write( "Let x = amt of 40% mixture is required
\n" ); document.write( "the resulting amt is to be 150 gal, therefore:
\n" ); document.write( "(150-x) = amt of water required
\n" ); document.write( ":
\n" ); document.write( ".40x = .08(150)
\n" ); document.write( ".40x = 12
\n" ); document.write( "x = 12/.4
\n" ); document.write( "x = 30 gal of 40% mixture, since you only have 5 gal, it's impossible to make 150 gal of an 8% mixture
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