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By what percent did the number of blue whales spotted at loc
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22 Jun 2018, 10:28
22 Jun 2018, 10:28
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94% (00:47) correct
6% (00:48) wrong based on 50 sessions
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By what percent did the number of blue whales spotted at location X decrease between 1999 and 2003?
A. 20%
B. 30%
C. 40%
D. 70%
E. 80%
Re: By what percent did the number of blue whales spotted at loc
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23 Jun 2018, 05:50
23 Jun 2018, 05:50
1
Carcass wrote:
By what percent did the number of blue whales spotted at location X decrease between 1999 and 2003?
Here,
this is percentage change
so we can look into the last attachment for blue whales
From the graph we can see that the number of blue whales seen in the year 1999 = 500
and the number of blue whale seen in 2003 = 400
Therefore the percentage change = \(\frac{(400 - 500)}{400}\) \(* 100%\)
i.e. -20% i.e. 20 percent decrease
Re: By what percent did the number of blue whales spotted at loc
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19 Oct 2020, 12:41
19 Oct 2020, 12:41
pranab223 wrote:
Carcass wrote:
By what percent did the number of blue whales spotted at location X decrease between 1999 and 2003?
Here,
this is percentage change
so we can look into the last attachment for blue whales
From the graph we can see that the number of blue whales seen in the year 1999 = 500
and the number of blue whale seen in 2003 = 400
Therefore the percentage change = \(\frac{(400 - 500)}{400}\) \(* 100%\)
i.e. -20% i.e. 20 percent decrease
It should be 100/500 * 100%. Your response yields -25%.
