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Rom4ik [11]
3 years ago
5

Over the course of a year, the population of chipmunks in Boston increased from 300000 to 387000. What was the percent increase

of the population of chipmunks? Express your answer as a percent.
Mathematics
1 answer:
Vesna [10]3 years ago
8 0

Answer:

The percent increase of the population of chipmunks was 29%

Step-by-step explanation:

we know that

The population of 300,000 chipmunks represent the 100%

The increase of population is equal to

(387,000-300,000)=87,000 chipmunks

Using proportion find the percent increase

Let

x-----> the percent increase

300,000/100%=87,000/x

x=100*87,000/300,000

x=29%

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Step-by-step explanation:

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Four to the sixth power times four to the -8th power please explain how to do this I don't understand it
Alenkinab [10]
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El jardinero de un parque planta flores siguiendo cierto patrón. En la primera fila planta 4 flores, en la segunda 7 y así suces
nevsk [136]

Answer:

a) Para i = 4, hay 13 flores en la fila 4.

b) Para i = 7, hay 22 flores en la fila 7.

c) La fila 11 tiene 34 flores.

Step-by-step explanation:

De acuerdo con el enunciado, cada fila tiene tres flores más que la fila inmediatamente anterior, significando que se puede determinar el número de flores de cada fila mediante una serie aritmética:

n = 4+3\cdot (i-1), i \ge 1 (1)

Donde:

i - Índice de la fila de flores.

n - Número de flores del índice de la fila de flores.

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b) Para i = 7, hay 22 flores en la fila 7.

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i=1+\frac{n-4}{3}

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6 0
3 years ago
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