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boyakko [2]
2 years ago
12

Two sevenths of a number subtracted from two fifths of that same number is 8. find the number

Mathematics
1 answer:
Allisa [31]2 years ago
7 0
2/7x - 2/5x = 8
multiply both sides by 35
= 10x - 14x = 280
combine 10x and 14x
= -4x = 280
divide both sides by -4
x= -70
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For this case we have that, by definition, the medians of a triangle are the line segments that are drawn from a vertex to the midpoint of the opposite side of the vertex. The medians of a triangle are concurrent at a point.

If we look at the figure, we can discard triangles 3 and 4.

Also, by definition, the median divides the vertex angle into two equal angles.

Thus, the correct option is triangle 1.

Answer:

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2 years ago
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Find the volume of the composite figure. Explain your thought, explain how your arrived at your answer. SHOW YOUR WORK FOR FULL
kobusy [5.1K]
We assume the composite figure is a cone of radius 10 inches and slant height 15 inches set atop a hemisphere of radius 10 inches.

The formula for the volume of a cone makes use of the height of the apex above the base, so we need to use the Pythagorean theorem to find that.
   h = √((15 in)² - (10 in)²) = √115 in

The volume of the conical part of the figure is then
   V = (1/3)Bh = (1/3)(π×(10 in)²×(√115 in) = (100π√115)/3 in³ ≈ 1122.994 in³


The volume of the hemispherical part of the figure is given by
   V = (2/3)π×r³ = (2/3)π×(10 in)³ = 2000π/3 in³ ≈ 2094.395 in³

Then the total volume of the figure is
   V = (volume of conical part) + (volume of hemispherical part)
   V = (100π√115)/3 in³ + 2000π/3 in³
   V = (100π/3)(20 + √115) in³
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2 years ago
In line 73, the author compares Mrs. Deverell to
adell [148]

The correct option is (B) show that Mrs. Deverell continues to be diminished in her new home.

<h3>What does line 73 described?</h3>

In line 73, the author compares Mrs. Deverell to an "intimidated child" primarily in order to -

  • Mrs. Deverell had no part to perform in her forever residence with Angel—all housekeeping work were to be left to a servants alone, and all other obligations were to be taken over from Angel.
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  • The author utilizes the metaphor of a scared child in this situation.
  • As a result, this analogy conveys to the reader Mrs. Deverell's limited status in her new home.

Therefore, according to the writer; in the line 73 the best description for the intimidated child is shown by option B.

To know more about the child, here

brainly.com/question/28154633

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5 0
1 year ago
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Answer:

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Step-by-step explanation:

This is the correct answer for edge

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2 years ago
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Explanation

1) Simulate the counting of the bills:

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1                                             5                         5

2                                             5 + 5 = 10           0

3                                             10 + 5 = 15         5

4                                             15 + 5 = 20         0

5                                              20 + 5 = 25        5

6                                              25 + 5 = 30        0

2) Pattern: you can see that the ones digit alreternate: 5, 0, 5, 0, 5, 0, ...

If the number of bills counted is odd the ones digit is 5, if the number of bills is even the ones digit is 0.
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