A population of snakes has 900 individuals. They have a death rate of 30 per year and a birth rate of 20 per year. Assuming 6 snakes migrate into the population and 3 migrate out of the population per year, how many individuals would there be after the first year? (To answer, write numerals in the box below.) Fill in the blank
Question
A population of snakes has 900 individuals. They have a death rate of 30 per year and a birth rate of 20 per year. Assuming 6 snakes migrate into the population and 3 migrate out of the population per year, how many individuals would there be after the first year? (To answer, write numerals in the box below.) Fill in the blank
Solution
To calculate the number of individuals after the first year, we need to consider the initial population, the death rate, the birth rate, and the migration rate.
- Start with the initial population: 900 snakes
- Subtract the number of deaths: 900 - 30 = 870 snakes
- Add the number of births: 870 + 20 = 890 snakes
- Add the number of snakes that migrated into the population: 890 + 6 = 896 snakes
- Subtract the number of snakes that migrated out of the population: 896 - 3 = 893 snakes
So, after the first year, there would be 893 individuals in the population.
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