Which phrase describes a unit rate? A. swimming 20 meters in 2 minutes B. swimming 20 meters in \( 1 \frac{1}{2} \) minutes C. swimming 20 meters in 0.5 minutes D. swimming 20 meters in 1 minute
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The phrase that describes a unit rate is D. swimming 20 meters in 1 minute. This is because it expresses the speed of swimming per unit of time (1 minute), making it easy to compare with other speeds or rates. It's important to note that unit rates allow for straightforward comparisons, and using a single time frame (like 1 minute) simplifies your calculations. If you see rates expressed in different time frames, it's worthwhile to convert them all to the same unit for a fair comparison!