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Im having trouble submitting this question but please help

Im Having Trouble Submitting This Question But Please Help class=

Sagot :

sqdancefan

9514 1404 393

Answer:

  • 7.5 oz of 12% solution
  • 4.5 oz of 4% solution

Step-by-step explanation:

Let x represent the quantity of 12% solution in the mix. The the total amount of acid is ...

  12%x +4%(12 -x) = 9%(12)

  8x = 60 . . . . . . . . . . divide by %, subtract 48

  x = 60/8 = 7.5 . . . . . ounces of 12% solution

  12 -x = 4.5 . . . . . . . . ounces of 4% solution

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Additional comment

You could leave out the part about what happens to Mrs. V without changing the math problem.

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