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Mathematics, 03.02.2020 12:58 kamgurunlian

The lemonade comes in 100% juice concentrate, but you only serve it as 70% solution. unfortunately, one batch got overwatered, so you have 4 quarts of 50% solution. how much 100% concentrate do you need to add in order to get the 70% solution?
how much of the 70% solution will you have?

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