The unit rate is 6.4 yards per second.
Step-by-step explanation:
Given statement is;
400 yards in 62.5 seconds
As we have to find unit rate in terms of seconds; therefore, we will divide total yards by total seconds.
62.5 seconds = 400 yards
Dividing both sides by 62.5

The unit rate is 6.4 yards per second.
Keywords: unit rate, division
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