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Math Help - Correcting a Liquid Ratio

  1. #1
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    Question Correcting a Liquid Ratio

    One pint of weed killer was accidentally emptied into a 64 oz bottle with remaining ounces filled with water.

    Correct mixture of weed killer to water should be: 1 oz (weed killer) to 2 gal. (water)
    Current incorrect mixture: 1 pint (weed killer) to 64oz (water) - 1 pint (weed killer)

    How much of the incorrect mixture and additional water is needed to fill a 2 gallon weed sprayer?
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  2. #2
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    Quote Originally Posted by stillatmycomputer View Post
    One pint of weed killer was accidentally emptied into a 64 oz bottle with remaining ounces filled with water.

    Correct mixture of weed killer to water should be: 1 oz (weed killer) to 2 gal. (water)
    Current incorrect mixture: 1 pint (weed killer) to 64oz (water) - 1 pint (weed killer)

    How much of the incorrect mixture and additional water is needed to fill a 2 gallon weed sprayer?
    Ok, so first you need to know that there are 16oz in a pint. That means your incorrect mixture contains 16oz of weed killer and 48oz of water. The trick is to figure out how to get 1oz of weed killer out of that. Assuming the contents are well-mixed, you need 1/16 of the bottle's contents, or 4oz. Now you know that 3oz of that is water, so you need to add enough water to that to make 2 gallons.
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