Twenty gallons of a salt solution consists of 35% salt. it is the result of mixing a 50% solution with a 25% solution. how many gallons of each of the solutions was used? let x= the number of gallons of the 50% solution and y= the number of gallons of the 25% solution. the corresponding modeling system is?
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Twenty gallons of a salt solution consists of 35% salt. it is the result of mixing a 50% solution wi...
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