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Svetach [21]
3 years ago
7

The population of Stark county this year is 7,921 people. Last year the population was 7,547 people. Find the approximate percen

tage rate of growth of the county. A. 9.5% growth B. 1.05% growth C. 5% growth C. 0.95% growth

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

Answer:

Option (C)

Step-by-step explanation:

To determine the population we use the formula,

P_n=P_0(1+r)^{n}

Where P_n = final population

P_0 = Initial population

r = percentage growth

Now we substitute these values in the formula,

7921=7547(1+r)^1

\frac{7921}{7547}=(1+r)

r = 1.0496 - 1

r = 0.0496

r = 0.05

Therefore, percentage growth of the population of Stark county is 5%.

Option (C). will be the answer.

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Answer: The interest is: $150.00

The formula we'll use for this is the simple interest formula, or:

Where:

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The grid shown below is in the shape of a rectangle.
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A Social welfare association decides to supply drinking water for the flood affected people. The drinking water is filled in a c
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Step-by-step explanation:

The rest of the question is:

each is in the shape of a cylinder of radius 21 cm and height is 50 cm.

==============================================================

The quantity of water left in the tanker after distribution

= Total quantity - Distributed quantity

Total quantity = Volume of the giving figure

                       = Volume of the cylinder + volume of 2 hemispheres

Volume of the cylinder of 4.2 m length and 1.2 m of a diameter.

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Volume of 2 hemispheres = 2*0.5 * (4/3) π r³ = (4/3) * (22/7) * 0.6³

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Distributed quantity = 60 times the volume of a cylinder of radius 21 cm and height is 50 cm

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Since 1 m³= 1,000,000 cm³

Distributed quantity = 4,158,000 cm³ = 4.158 m³

The quantity of water left in the tanker after distribution =

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Since 1 m³= 1,000 liter

The quantity of water left in the tanker after distribution =

  =  1.499 m³ = 1.499 * 1000 = 1,499 liter

7 0
4 years ago
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