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posted by Devon Kennedy on Tuesday, December 11, 2012 at 8:38pm.

How do you express 400 yards in 53 seconds as a unit rate?

just divide 400 by 53 and it becomes yards per second

Cross multiply and solve for x. 400/53 = x/1 53x = 400 x = 400/53 x = 7.55 yards per second

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