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olga2289 [7]
3 years ago
5

The population of Oak Forest is increasing at a rate of 4% per year. If the population is 74,145 today, what will it be in three

years?
Mathematics
1 answer:
Shtirlitz [24]3 years ago
4 0

Answer:

83,403

Step-by-step explanation: Take 74,145 and multiply it by 4%. Then take that number and add it to the 74,145 and that'll give you year one. For year 2 you'll take your total from year 1 and multiply it by the 4% growth rate then you'll add the 4% to what your ending from year 1 and that'll give you your total growth after 2 years. Then you'll take your ending total from year 2 and multiply it by 4% and then you'll add that 4% to the total end from year 2 and that'll give you your total growth of 4% every year for 3 consecutive years.

Hope this helps!

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The perimeter of the new m-phone is 16 inches. The phones length is 5.25 inches. What is the width of the phone
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Perimeter is all the sides added up together.
Divide 16 by 2, so that you can get just a measurement of the length and the width.

16/2 = 8

Since the length is 5.25, subtract that by 8.

8-5.25 = 2.75

The width of the phone is 2.75 inches.
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Alright, so you have the basic formula- good.
You have the A value (400), the interest rate r (7.5% -> .075 in decimal), and the final P value (8500). So, we only need to solve for t.

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logarithms are the inverse of exponents, basically, if you have an example like
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