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musickatia [10]
3 years ago
15

A hot plume of mantle material, which may extend to the core-mantle boundary, produces a volcanic region a few hundred kilometer

s across called a _____.
hot spot

volcanic arc

Ring of Fire

mantle plume
Physics
2 answers:
77julia77 [94]3 years ago
7 0

Option A, hot spot, is the right answer.

Mantle plumes are regions of warm, up-welling covering. A hot spot occurs over the plume. It generates the magma that emanates by the unbreakable plates of the lithosphere and provides active volcanoes at the surface of the earth. In other words, the hot spots are found in the mantle where cliffs melt to form magma. It creates a volcanic region a few hundred kilometers across.

Fantom [35]3 years ago
5 0

Answer: Hot spot

The volcanic hot spot is an area in the mantle from which heat rises as a thermal plume from deep in the Earth.

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Aliya deposited half as much money in a savings account earning 1.9% simple interest as she invested in a money market account t
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Let <em>A</em> be the amount of money that Aliya deposited in the savings account. Since <em>A</em> is half as much as money as she invested in a money market account, then the amount that she invested in the market account is <em>2A.</em>

<em />

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Since the money market account gives 3.7% simple interest, the total amount of interest that she will earn from the money market account, is 3.7% of <em>2A</em>, which is equal to:

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\begin{gathered} \frac{1.9}{100}\times A+\frac{3.7}{100}\times2A \\ =\frac{1.9}{100}\times A+\frac{7.4}{100}\times A \\ =(\frac{1.9}{100}+\frac{7.4}{100})\times A \\ =\frac{1.9+7.4}{100}\times A \\ =\frac{9.3}{100}\times A \end{gathered}

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\begin{gathered} \frac{9.3}{100}\times A=297.60 \\ \Rightarrow A=\frac{100}{9.3}\times297.60 \\ \Rightarrow A=\frac{100\times297.60}{9.3} \\ \Rightarrow A=\frac{29760}{9.3} \\ \Rightarrow A=3200 \end{gathered}

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2A=2\times3200=6400

Therefore, Aliya deposited 3200 in a savings account and 6400 in a money market account.

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