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Activity A scientist needs to make 5 4 liters of saline solution salt water in...

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Algebra

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Activity A scientist needs to make 5 4 liters of saline solution salt water in which the salt level must be at 28 concentration meaning 28 of the water is salt Unfortunately the scientist only has two types of saline solution in his possession He has saline solution with a 12 concentration level and saline solution with a 30 concentration level How much of each type of saline solution should the scientist mix together to achieve 5 4 liters of saline solution at a concentration level of 28 Let a represent the amount 12 saline solution and let y represent the amount of 30 saline solution 10 Determine which two equations can be used to represent the system Before moving to the next question make sure that you write down the the two equations you ve chosen x y 28 12x 30y 1 512 12x 30y 5 4 12x 30y 28 x y 1 512 x y 5 4 1 point

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