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Goshia [24]
3 years ago
15

It is predicted that the population of a particular state will double every 25 years. a) Determine the annual and monthly growth

rates. Express your answers as percents. b) Determine the continuous growth rate per year. Express your answer as a percent.
Mathematics
1 answer:
Makovka662 [10]3 years ago
4 0
B...

Hope this helps!
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A number increased by 4 is the same as 19 minus 2 times the number
ElenaW [278]

Hello from MrBillDoesMath!

Answer:

n = 5


Discussion:

Let the original number be "n"  Translating the problem  statement to mathematical symbolism:

n + 4 = 19 - 2n                   =>  add 2n to both sides

n + 2n + 4 = 19 - 2n + 2n  =>  combine like terms

3n + 4 = 19                        => subtract 4 from both sides

3n = 19 -4  = 15                 => divide both sides by 3

n = 15/3 =5


Check: Does 5 +4 = 19 - 2(5)? Does 9 = 9? Yes. so the value for n is confirmed correct.


Thank you,

MrB

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