Andreas wants to estimate how many fish there are in a lake. One day he catches 20 fish,marks them,and returns them to the lake.
The next day he catches 10 fish of which four are marked. Estimate the number of fish in the lake.
1 answer:
Answer:
50
Step-by-step explanation:
The ratio of marked fish to caught fish is 4:10, we need to solve for x in 20:x, since 4 * 5 = 20, 10 * 5 = x so x = 50 fish.
You might be interested in
Answer:
Answer 5 1/4
Step-by-step explanation:
Answer:
Step-by-step explanation:
a^2 - 5bc - 1
a = 7
b = 3
c = 2
7^2 - 5*3*2 - 1
49 - 30 - 1
18
Answer:
I think right answer is integers
Answer:
https://scuolaelettrica.it/correttore/spagnolo/manutenzione/risolutore/risolti/risoltirettangolo.php
Step-by-step explanation:
here use this
Can you send more information about this problem