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Mathematics, 22.04.2020 22:44 AyeSmoky

I have 7.5 quarts of fluid that needs changed; however, the fluid can only be removed and replaced 2.5 quarts at a time. How many 2.5 quart changes do I need to make to have 80% or more new fluid?

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I have 7.5 quarts of fluid that needs changed; however, the fluid can only be removed and replaced 2...
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