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24 September, 03:03

A solution of alcohol and water is 70% alcohol. The solution is found to contain 35 milliliters of alcohol. How many milliliters total (both alcohol and water) are in the solution?

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  1. 24 September, 03:27
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    Mixture of both alcohol and water in solution is 50 milliliters

    Step-by-step explanation:

    Let x = the volume of the solution (alcohol plus water)

    The solution of alcohol and water

    contains 70% alcohol. This means the solution contains (70/100) * x

    =0.7*x = 0.7x

    Since the mixture contains only alcohol and water,

    The percentage of water in the solution = (100% - % of alcohol)

    = 100% - 70% = 30%

    The solution is found to contain 35 milliliters of alcohol. This means that

    0.7x = 35 milliliters of alcohol

    x = 35/0.7

    x = 50 milliliters

    Mixture of both alcohol and water in solution is 50 milliliters
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