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Tara is researching the stork population living in a bird reserve. On her first day, she captures and tags 41 birds. Two weeks later, she captures 57 birds and finds that 48 are not tagged. Estimate the actual number of storks in the bird reserve.

    
472

     
882

     
107

     
260

Guest Apr 30, 2018

Best Answer 

 #1
avatar+867 
+2

Hey Guest!

 

Out of the 57 birds she caught again, 9 were tagged. 

 

Since she tagged 41 birds and only 9/57 were re-captured, we can do this to find the total number of birds:

 

\(41\cdot57\div9=\boxed{259.\overline{6}}\)

 

The final answer is D, 260.

 

I hope this helped,

 

Gavin

GYanggg  Apr 30, 2018
 #1
avatar+867 
+2
Best Answer

Hey Guest!

 

Out of the 57 birds she caught again, 9 were tagged. 

 

Since she tagged 41 birds and only 9/57 were re-captured, we can do this to find the total number of birds:

 

\(41\cdot57\div9=\boxed{259.\overline{6}}\)

 

The final answer is D, 260.

 

I hope this helped,

 

Gavin

GYanggg  Apr 30, 2018

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