Rate of growth question

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Pendergast

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Hi all - I was wondering if I could get some help with this question, my brain isn't playing ball today:

If the rate of growth is 143mm per year; how long will it take to reach 20m?

I divided 20 by 143 to get 0.139... but how do I convert that back to years? Any help would be greatly appreciated.
 
Pendergast said:
Hi all - I was wondering if I could get some help with this question, my brain isn't playing ball today:

If the rate of growth is 143 mm per year; how long will it take to reach 20 m?

I divided 20 by 143 to get 0.139... but how do I convert that back to years? Any help would be greatly appreciated.
Click to expand...
How many mm make 1 m?
 
Pendergast said:
This is the complete problem:

"If, in the year 2100, the rate of sea ice growth is 143mm per year, how long will the sea ice take to grow by 20m?"
Click to expand...
Okay - as I read the problem - your answer (after multiplying by 1000 and including "units") will be correct.
 
I have a problem with the question itself! It says "If, in the year 2100, the rate of sea ice growth is 143mm per year". It does NOT say that the rate of sea ice grown remains that in future years!
 
HallsofIvy said:
I have a problem with the question itself! It says "If, in the year 2100, the rate of sea ice growth is 143mm per year". It does NOT say that the rate of sea ice grown remains that in future years!
Click to expand...
You would be correct in thinking that - however for the purposes of this question it is assumed the rate of ice growth remains constant.
Of course in the real world you couldn’t make such an assumption.
 
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