SOLUTION: A scientist wants to know how many fish are in a pond. He captures 15 and tags them and re-releases back into the pond. The next day he captures 15 more fish. Two of these have t

Question 345811: A scientist wants to know how many fish are in a pond. He captures 15 and tags them and re-releases back into the pond. The next day he captures 15 more fish. Two of these have tags. How many fish are in the pond?
I have 4 answers to choose from, but do not know how to set up the problem in order to get the answer. Thanks
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
15/x=2/15 cross multiply
2x=15*15
2x=225x=225/2
x=112.5 fish in the pond.
RELATED QUESTIONS
A SCIENTIST WANTS TO KNOW THE NUMBER OF FISH IN A CERTAIN LAKE.SHE CAPTURES 15... (answered by stanbon)

An environmental scientist wants to estimate the number of carp in a pond. He captures... (answered by checkley77)

9. The Capture/Recapture method: A biologist wants to estimate how many fish are in a... (answered by stanbon)

Ahmad is fishing in a new pond stocked with 5 catfish, 7 seabass, and 8 tilapia. Ahmad's... (answered by robertb)

Rachel wanted to estimate the fish population of a pond. Initially, she caught 200 fish,... (answered by josgarithmetic,ikleyn)

if it takes pipe A 20 days to fill a fish pond and pipe B 15 days to fill the same pond... (answered by solver91311,Anthea Lawn)

To determine the number of deer in a forest a forest ranger tags 280 and releases them... (answered by josgarithmetic)

We need to know how many fish are in a particular lagoon. We capture 72 fish, mark them,... (answered by stanbon,ewatrrr)

Anna has a rectangular shape of fish pond in her backyard. The pond is in the shape of a... (answered by josmiceli)