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27 August, 16:21

Gabe Amodeo, a nuclear physicist, needs 60 liters of a 60 % acid solution. He currently has a 50% solution and a 70% solution. How many liters of each does he need to make the needed 60 liters of 60 % acid solution? Gabe needs 30 liters for a 50% solution.

He also needs a ___ for a 70% solution. whats __?

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  1. 27 August, 19:23
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    Gabe needs 20 liters of the 40% solution.

    He also needs 40 liters of the 70% solution.

    Step-by-step explanation:

    Equation:

    acid + acid = acid

    0.40x + 0.70 (60-x) = 0.60*60

    40x + 70*60 - 70x = 60*60

    -30x = - 10*60

    x = 20 liters

    Gabe needs 20 liters of the 40% solution.

    He also needs 40 liters of the 70% solution.
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