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leonid [27]
3 years ago
10

Suppose a city with population 400,000 has been growing at a rate of 3% per year. If this rate continues, find the population of

this city in 20 years?​
Mathematics
1 answer:
creativ13 [48]3 years ago
3 0

Answer: 8,240,000

Step-by-step explanation:

firstly you must multiply 1.03 by 20 to represent rate and time, then multiply by 400.000 to get a final answer of 8.240,000

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step 1: isolate y in the first equation

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step 2:  substitute the y value on the 2th equation:

5x-(2x-6)=9

step 3:  solve the present equation:

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step 4: get the y value by replacing the value of x in </span>y = 2x - 6:
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Answer:

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