Digital SAT Practice Test: Systems of Equations (Set 5)
This adaptive-style simulation simulates the real Digital SAT exam interface to help you master Systems of Equations.
Set 5: Systems of Equations (Intermediate)
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A chemist has a 10% salt solution and a 25% salt solution. How many liters of the 25% solution must be added to 20 liters of the 10% solution to create an 18% solution?
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