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lana66690 [7]
2 years ago
15

How many pieces of string, each 1/5 m long, can be cut from a string 3 m long?

Mathematics
2 answers:
alina1380 [7]2 years ago
7 0
15 pieces of string.
Mandarinka [93]2 years ago
3 0

Answer:

15 pieces

Step-by-step explanation:

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There are 250 wolves in a national park. the wolf population is increasing at a rate of 16% per year. write an exponential model
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\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &250\\ r=rate\to 16\%\to \frac{16}{100}\dotfill &0.16\\ t=\textit{elapsed time} \end{cases} \\\\\\ A=250(1 + 0.16)^{t}\implies A=250(1.16)^t \\\\[-0.35em] ~\dotfill

A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\dotfill &1000\\ P=\textit{initial amount}\dotfill &250\\ r=rate\to 16\%\to \frac{16}{100}\dotfill &0.16\\ t=\textit{elapsed time} \end{cases} \\\\\\ 1000=250(1.16)^t\implies \cfrac{1000}{250}=1.16^t\implies 4=1.16^t \\\\\\ \log(4)=\log(1.16^t)\implies \log(4)=t\log(1.16) \\\\\\ \cfrac{\log(4)}{\log(1.16)}=t\implies \stackrel{\textit{about 9 years and 4 months}}{9.34\approx t}

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2 years ago
Which object has a mass of approximately 450 grams?
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I would say that the tree is 450 grams
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3 years ago
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The answer is A) 1:2

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there are 5 walnut trees currently in the park park workers will plant 8 more walnut trees today how many walnut trees will the
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