Researchers count 30 tagged zebras and 150 total zebras in an area of a game reserve. if researchers had previously tagged 80 to
tal zebras at the game reserve, about how many total zebras live at the game reserve? write a proportion to extimate the total population.
1 answer:
About 400 zebras live at the game reserve.
The proportion would be
30/150 = 80/x
This is because 30 zebras are tagged out of 150 in one area. We know that they tagged 80 total zebras out of x total zebras.
To solve this, cross multiply:
x*30 = 150*80
30x = 12000
Divide both sides by 30:
30x/30 = 12000/30
x = 400
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