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SAT Math: Using Rates to Calculate Total Time 8 Views
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Two chemistry students, Mike and Mona, are each adding base to the same beaker of acid in order to neutralize it. Mike adds the base at a rate of 0.35 milliliters per second, and Mona adds it at a rate of 0.22 milliliters per second. If their teacher suggests that they proceed carefully after 5 milliliters have been added, after how much time t in seconds should they begin to proceed carefully? Round to the nearest tenth place.
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