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OpenStudy (anonymous):
A 20% acid solution is mixed with a 70% acid solution to get 50 liters of a 40% solution. Which of the following expressions is equal to 4(50)? 0.2x + 0.7y 2x + 7y x + y
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OpenStudy (anonymous):
@wio
OpenStudy (anonymous):
The second one.
OpenStudy (anonymous):
thanks im just tired
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