Mathematics, 05.05.2020 06:36, Rboltonbcs

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Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

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The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

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Mathematics, 21.06.2019 20:00, madisonrosamond99

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