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Mathematics, 17.06.2020 09:57 224509

At a harbour, the effect of the tide changed the water level by 14.3 m in 5.5 h. What was the mean (average) change in water level per hour?
a. -2.6 m/h b. -19.8 m/h
c. -78.65 m/h d. -8.8 m/h

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At a harbour, the effect of the tide changed the water level by 14.3 m in 5.5 h. What was the mean...
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