Question

the following table gives the birth and death rates for 4 countries in 3 different years. find the net growth rate due to births and deaths (neglect immigration) in each of the 3 years for country a. based on these trends, predict how the countrys population will change in the next 20 years.

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$$\begin{tabular}{|c|ccc|ccc|} \\hline & \\multicolumn{3}{c|}{birth rate/1000} & \\multicolumn{3}{c|}{death rate/1000} \\\\ \\hline country & 1980 & 1995 & 2019 & 1980 & 1995 & 2019 \\\\ \\hline a & 13.1 & 10.7 & 9.2 & 11.9 & 11.4 & 11.3 \\\\ b & 23.3 & 20.0 & 19.1 & 6.8 & 6.5 & 6.2 \\\\ c & 12.6 & 10.3 & 9.5 & 11.8 & 10.9 & 10.4 \\\\ d & 15.9 & 14.2 & 13.2 & 8.6 & 8.9 & 8.3 \\\\ \\hline \\end{tabular}$$

country as net growth rate in 1980 was per 1000.
(type an integer or a decimal.)

Explanation:

Identify the given values for Country A in 1980

From the table, locate the row for Country A and the columns corresponding to the year 1980:

• Birth Rate per 1000 in 1980: \(13.1\)
• Death Rate per 1000 in 1980: \(11.9\)

Calculate the net growth rate

The net growth rate per 1000 is calculated by subtracting the death rate from the birth rate:

$$ \text{Net Growth Rate} = \text{Birth Rate} - \text{Death Rate} $$

$$ \text{Net Growth Rate} = 13.1 - 11.9 = 1.2 $$

Answer:

Country A's net growth rate in 1980 was <blank>1.2</blank> per 1000.