Question

biologists tagged 250 fish in false rive on oct 5,on later date they found 7 tagged fish in a sample of 350.estimate total number of fish

Answer 1

Answer:

Step-by-step explanation:

Math

Louisiana biologists tagged 250 fish in the oxbow lake False River on October 5. On a later date, they found 7 tagged fish in a sample of 350 fish. Estimate the total number of fish in False River to the nearest hundred.

7/350 = 250/x *

7/250 = x/350

250/350 = 7/x

Answer 2

Concept

In mathematics, a ratio is a comparison of two or more numbers, indicating their magnitude relative to each other. A ratio compares two quantities by division. The dividend or number to be divided is called the antecedent and the divisor or number to be divided is called the sequence.

Given

We have been given that 250 fish were tagged in false rive on October 5  whereas on the other day 7 fish were tagged in a sample of 350.

Find

We are asked to determine the total number of fish in false rive on October 5  .

Solution

Let the total number of fish in false rive on October 5  be x .

Tagged fish $=250$

Total number of fish in false rive on October 6 $=350$

Tagged fish $=7$

Hence, the ratio of tagged fish to the total number of fish is written as

$\frac{250}{x} =\frac{7}{350} \\\\x=\frac{250\times350}{7} \\\\x=\frac{87500}{7} \\\\x=12500$

Therefore, the number of fish in false rive is 12500 .

#SPJ3