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Mathematics 6 Online
OpenStudy (anonymous):

A 30% acid solution is mixed with a 60% acid solution to get 100 liters of a 50% solution. If x = the amount of 30% solution and y = the amount of 60% solution, which of the following expressions equals to 500? 0.3x + 0.6y 30x + 60y 3x + 6y

OpenStudy (anonymous):

help plz really need it

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