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Wewaii [24]
3 years ago
6

PLEASEEEE HELPP Enrollment in a dance studio has grown exponentially since the studio opened. A graph depicting this growth is s

hown. Determine the percentage rate of growth
Enrollments
Time in Years
O 0.25%
1.25%
2.5%
25%

Mathematics
2 answers:
marishachu [46]3 years ago
8 0

Answer:

  25%

Step-by-step explanation:

The first doubling, from 20 to 40 occurs in a little more than 3 years, so the multiplier each year is a little less than 2^(1/3) ≈ 1.26. That is, each year is a little less than 26% more than the previous year.

The graph also goes near the point (8, 120), so grows by a factor of 6 in 8 years. That suggests a multiplier of 6^(1/8) ≈ 1.251. Each year is about 25.1% more than the previous year.

Both of these multipliers represent yearly growth rates near 25%.

___

Using the "rule of 72", the product of doubling time and percentage growth is about 72. So, for a doubling time of 3 years, the percentage growth is predicted to be near 72/3 = 24 percent.

All of these estimates help you choose the correct answer: 25%.

FinnZ [79.3K]3 years ago
7 0

Answer:

 25%

Step-by-step explanation:

The first doubling, from 20 to 40 occurs in a little more than 3 years, so the multiplier each year is a little less than 2^(1/3) ≈ 1.26. That is, each year is a little less than 26% more than the previous year.

The graph also goes near the point (8, 120), so grows by a factor of 6 in 8 years. That suggests a multiplier of 6^(1/8) ≈ 1.251. Each year is about 25.1% more than the previous year.

Both of these multipliers represent yearly growth rates near 25%.

___

Using the "rule of 72", the product of doubling time and percentage growth is about 72. So, for a doubling time of 3 years, the percentage growth is predicted to be near 72/3 = 24 percent.

All of these estimates help you choose the correct answer: 25%

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Answer:

2x - 0.4x ;

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Yes

Step-by-step explanation:

Let number of miles = x

Arlene:

Double number of miles = 2 * x = 2x

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2x - 20% of 2x ;

2x - 0.4x

Raul:

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To know if expressions are equivalent :

Let x = 10 miles

Using Arlene's expression:

2x - 0.4x

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Using Raul's expression :

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Since they give the same result, we can conclude that the expression are equivalent

5 0
3 years ago
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Marrrta [24]

Answer:

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Step-by-step explanation:

In order to get the answer to this question you need to turn the scientific notations into standard form then subtract the two standard forms.

(2.2\times10^{-4})-(3\times10^2)

Turn the notations into standard form:

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Turn into notation form:

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Hope this helps.

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Step-by-step explanation:

Hope this helps! Have a nice day!

5 0
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