A full lake begins dropping at a constant rate. After 4 weeks it has dropped 3 feet. What is the unit rate of change in the lake's level compared to it's full level?

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18-12-2014
Mathematics

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A full lake begins dropping at a constant rate. After 4 weeks it has dropped 3 feet. What is the unit rate of change in the lake's level compared to it's full level?

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Jal Jal · Answer 1 · 2014-12-18T18:17:56-05:00

Jal Jal

18-12-2014

So it is dropping at 3 feet per every 4 weeks. Since the rate is unchanging, you can simplify this to 3/4 (or .75) feet per week. I'm not really sure what you mean by unit rate of change, but you can simplify this further to about .107 feet/day (by dividing .75 by 7).

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