Posted by **Diana** on Monday, May 6, 2013 at 6:27am.

A researcher tagged 40 giant turtles in 2008. In 2009 , she returned and captured 50 turtles , 16 of which were tagged. In 2010 , she returned again and captured 30 turtles , 8 of which were tagged.

a) Use a proportion to estimate the turtle population for 2009.

b) Use a proportion to estimate the turtle population for 2010.

- Math -
**Diana**, Monday, May 6, 2013 at 8:07am
help please !!!!!!!!!

- Math -
**Steve**, Monday, May 6, 2013 at 11:23am
We know that there are 40 turtles tagged.

In 2009, 16/50 = 32% of the population was tagged, making the population 40/.32 = 125 (P/40 = 50/16)

In 2010, 8/30 = 26.7% of the population was tagged. So, the population is about 150 (P/40 = 30/8)

- Math -
**Diana**, Monday, May 6, 2013 at 1:24pm
thanks

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