What is the solution to the following system:
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Mathematics, 21.06.2019 21:00
How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?
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The function f(x)= x5+ ( x + 3)2 is used to create a table. if x = -1 then what is f(x)?
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At a book fair, joe bought 24 books at 3 for $5 and had $2 left. how much money did he have at first?
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