The Baldwin family walked four over five of a mile in four over nine of an hour. What is their unit rate in miles per hour?
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Answer:
9/5 miles/hr or 1.8 miles/hr..
Step-by-step explanation:
speed = distance/time...
=(4/5)/(4/9)
=(4*9)/(5*4)
=9/5
=1.8 mph
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