Mathematics, 15.04.2021 03:10 jaidxxxz
Twelve gallons of a salt solution consists of 25% salt. It is the result of mixing a 30% solution with a 20% solution. How many gallons of each of the solutions was used? Let x= the number of gallons of the 30% solution and y= the number of gallons of the 20% solution. The corresponding modeling system is {x+y=120.3x+0.2y=0.25(12). Solve the system by using the method of substitution.
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Twelve gallons of a salt solution consists of 25% salt. It is the result of mixing a 30% solution wi...
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