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oksian1 [2.3K]
3 years ago
6

Select the correct answer from each drop-down menu.

Mathematics
1 answer:
grandymaker [24]3 years ago
3 0

Answer:

After about 22 years, the population of each community will be approximately 12400

Step-by-step explanation:

Given

y_1 = 10000(1.01)^x

y_2 = 8000(1.02)^x

Required

The population of each community after certain years.

(a)\ x = 12

We have:

y_1 = 10000(1.01)^x                                               y_2 = 8000(1.02)^x

y_1 = 10000(1.01)^{12                                              y_2 = 8000(1.02)^{12

y_1 = 11268.25                                                     y_2 = 10145.93

y_1 \approx 11300                                                         y_2 \approx 10100

(b)\ x = 22

We have:

y_1 = 10000(1.01)^{22                                              y_2 = 8000(1.02)^{22

y_1 = 12447.158                                                    y_2 = 12367.83

y_1 \approx 12400                                                          y_2 \approx 12400

(c)\ x = 16

We have:

y_1 = 10000(1.01)^{16                                              y_2 = 8000(1.02)^{16

y_1 = 11725.78                                                     y_2 = 10982.28

y_1 \approx 11700                                                         y_2 \approx 11000

(d)\ x = 20

We have:

y_1 = 10000(1.01)^{20                                              y_2 = 8000(1.02)^{20

y_1 = 12201.90                                                    y_2 = 11887.60

y_1 \approx 12200                                                         y_2 = 11900

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