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Komok [63]
3 years ago
11

Could use some help please

Mathematics
1 answer:
Elanso [62]3 years ago
6 0
For the first scenario, you’re looking at a compound interest problem. You’re given all the information you need, so just input it into the compound interest equation.

A = P(1 + r/n)^nt

P is your principal, aka starting amount. That’s the 12000 people you start with.

R is your rate of interest, aka how much your principal is expanding by. That’s the 5% growth rate each year, or 0.05.

N is the number of times your principal grows each year. That’s only once here.

T is however long the change lasts. In this scenario, its from 2006 to 2020, so 14 years.


Input all this in and solve for A, which is your total amount.

A = 12,000(1 x 0.05/1)^(1 x 14) = 23,759.18

Since I doubt you can have 1/5 of a person, you round this down to 23,759, which is your answer.

I’d like to help with your second problem, but it’s cut off on the edge of the image, I can’t see all the numbers.






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the sum of the first six terms of a geometric series is 21/16 . if the common ratio is -1/2 , what is the first term?
Oksanka [162]

Answer:

-84

Step-by-step explanation:

The formula for the nth term of a geometric progression is

Un = ar^n- 1

The sum of the first six terms of a geometric series (U6) = 21/16

Common ratio = -1/2 ,

a = First term ??

21/16 = a × (-1/2 )^6- 1

21/16 = a ×(-2^-1)^5

21/16 = a × -2^-6

Cross Multiply

16 × a × -2^-6 = 21

a = 21/16 × -2^-6

a = 21/16 ×- 1/2⁶

a = 21/16 × -1/64

a = 21 ÷(-1/4)

a = 21 × -4

a = -84

The first term = 84

8 0
2 years ago
WILL MARK BRAINLEIST PLZ HELP
Dmitry [639]

Answer:

28

Step-by-step explanation:

The scale factor is 3.5 which is found out by doing 14 divided by 4. Once you know the scale factor you simply have to do 8 multiplied 3.5 which equals 28.

8 0
3 years ago
This oblique circular cone has a radius of 5\text{ m}5 m5, start text, space, m, end text and a height of 6\text{ m6 m6, start t
zysi [14]

Answer:

157 m^{3}

Explanation:

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<em>Hope this helps and have a great day/night!</em>

<em>              -</em><em><u>grey</u></em>

4 0
3 years ago
Read 2 more answers
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LenaWriter [7]
You would keep the 2 hour for the whole number of the mixed number and then, make the minutes (15) as a fraction with 60, and divide them both by 20. that is just for the mixed number.
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3 years ago
When solving the equation x/5 - 12 = 10, what is your last step?
Fittoniya [83]

Answer:

A multiply by 5

Step-by-step explanation:

x/5-12=10

x/5=10+12

x/5=22

multiple each side by 5

x=22*5

4 0
3 years ago
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