Respuesta :
Answer:
B; 2.0%
Step-by-step explanation:
In this question, we are asked to calculate the annual percentage of death in a population that has 20 deaths out of a total of 1000 birds.
To do this, we need to divide the number of deaths over the total number of deaths and multiply by 100%
Mathematically, this can be related as follows;
20/1000 * 100 = 2000/1000 = 2%
The percentage of death in the bird population is 2%
Answer:
B. 2.0%.
Step-by-step explanation:
This question can be solved using a rule of three.
The population is of 1000(which is 100%).
There is no immigration or emigration but there are 40 births and 20 deaths per year.
40 - 20 = 20
How much it is?
1000 - 100%
20 - x%
1000x = 20*100
1000x = 2000
x = 2000/1000
x = 2
So the correct answer is:
B. 2.0%.
