10th grade

posted by .

scientist needs 5L of
12% solution. She has
on 10% and 17%
solution. How much of
each does

  • 10th grade -

    .12(5)=.10(x)+.17(5-x)
    where x is the amount of 10% solution
    and 5-x is the rest amount of the 5L of 17% solution

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