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Paige
Paige asked in Science & MathematicsMathematics · 9 years ago

Math Question Algebra 2?

I am trying to solve the following from my textbook: How much of an 8% saline solution should be added to 600ml of a 3% solution to produce a 5% solution.

Update:

Please explain your steps and how you came up with your question. The possible answers assuming the book has the correct answer. ( it is multiple choice) are 200ml,300ml,400ml, 500ml.

When I tried this twice I got 600 ml

Update 2:

Please explain your steps and how you came up with your question. The possible answers assuming the book has the correct answer. ( it is multiple choice) are 200ml,300ml,400ml, 500ml.

When I tried this twice I got 600 ml

1 Answer

Relevance
  • ranjankar
    Lv 7
    9 years ago
    Favorite Answer

    LET THE QUANTITY OF 8% SOLUTION MIXED BE X ml

    0.08X + 0.03*600 = ( X+600)*0.05

    0.08X + 18 = 0.05X + 30

    0.03X = 12

    X = 12 /0.03 = 400 ML answer

    check

    600 X 0.03 = 18

    400 X 0.08 = 32

    ADD = 50

    50 /1000 X 100 = 5%

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