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Math Help - Can anyone help me to 'show' the average

  1. #1
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    Can anyone help me to 'show' the average

    I have a question on an assignment that has got me beat. It is to do with the disintegration of an ice shelf, which was 14,000 km^2 at the beginning of march, and disintegrated to 2000 km^2 by the end of November. The question says given there are 275 days in a year show that average rate of disintegration is 7.3 km^2 day^-1.

    Cant work this out, I thought the average is the same as the 'mean'? If I attempt to calculate the mean from the information given I get something very different than 7.3 km^2 day^-1.

    Can anyone give me some advice?
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  2. #2
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    Re: Can anyone help me to 'show' the average

    there is decompositin of 14000 - 2000 = 12000 km^2 in nine months in 275 days so what wiil be the disintegration per day, it wiil be 12000/275 km^2 per day
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  3. #3
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    Re: Can anyone help me to 'show' the average

    That is what I thought. But that works out at 43.63636363... But the questions says show that the rate is 7.3 km^2 day^-1, not show that it is 43.63 ect. This is why i am lost!
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  4. #4
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    Re: Can anyone help me to 'show' the average

    Are these March and November of the same year? What year is given?
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  5. #5
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    Re: Can anyone help me to 'show' the average

    yes, 2008
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  6. #6
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    Re: Can anyone help me to 'show' the average

    What fantastic plots will come out in the Media season 2 game of thrones? Let me tell you.
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