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Arlecino [84]
2 years ago
12

Soit trois nombres consécutifs. Lorsque l’on soustrait le double du deuxième nombre du quadruple du

Mathematics
1 answer:
irina [24]2 years ago
4 0

Answer:

Les trois nombres sont 5, 6 et 7.

Step-by-step explanation:

Soit x le premier nombre.

x + 1 sera le second et x + 2 sera le troisième.

On pose l'équation :

2x + 3(x + 1) = 4(x + 2)

2x + 3x + 3 = 4x + 8

5x - 4x = 8 - 3

x = 5

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Find two geometric means between 7 and 189
Roman55 [17]

Answer:   21, 63

<u>Step-by-step explanation:</u>

We need to find two geometric means between 7 and 189.

The Geometric Sequence is: 7, ____, ____, 189

Let's find r (common ratio):

We can see that the common ratio will be multiplied by itsely 3 times in order to get from 7 to 189:

                                           7 r³ = 189

                                            r^3=\dfrac{189}{7}

                                            r³ = 27

                                          ∛r³ = ∛27

                                              r = 3

Now that we know the common ratio is 3, we can multiply 7 and 3 to get the next term (21), and multiply that by 3 to get the third term (63), and multiply that by 3 as a check to confirm we get 189.

7 x 3 = 21

           21 x 3 = 63

                         63 x 3 = 189 \checkmark

The completed Geometric Sequence is: 7, <u>21</u>,  <u>63</u>, 189

8 0
2 years ago
Which of the following items are elements of a monthly checking account statement? I. A period (beginning date and ending date)
Alecsey [184]

Answer:

the answer is d.

Step-by-step explanation:

Monthly checking account statements include:

- A period

- A beginning balance and an ending balance

- A detailed list of debits and credits during the period

so it is d since it is all three.

3 0
2 years ago
Find the midpoint of the segment with the given endpoints.<br><br> D(1, 2) and E(–3, 6)
8_murik_8 [283]
(-1,4) is the midpoint of D and E
7 0
3 years ago
Markita bought a roll of carpet that is 8.5 feet wide. The maximum area the carpet will cover is 136 square feet. What is the lo
kenny6666 [7]

Answer:

16 feet in length.

Step-by-step explanation:

In this situation, you are given the area and the width of the full carpet, furthermore, you must reverse the formula for area to find the length, as so:

<u>Area Formula</u>: A=<em> l • w</em>

<u>Given</u>: 136= <em>l</em> • 8.5

<em>l</em> = 136 ÷ 8.5

<em>l</em> = 16 feet

I hope this was helpful!

3 0
3 years ago
A glass bottle filled with oil weighs 590 grams. After Sophia uses 200 milliliters of oil, the bottle weighs 400 grams. The weig
iris [78.8K]

Answer:  The answer is M=590-\dfrac{19}{20}V.


Step-by-step explanation: Given that a glass bottle is filled with oil weighs 590 grams. After that, Sophia uses 200 millilitres of oil and then the bottle weighs 400 grams.

Therefore, the weight of the oil that Sophia uses = 590 - 400 = 190 grams.

That is, 190 grams = 200 millilitres, so

1~\textup{ ml}=\dfrac{190}{200}~\textup{grams},\\\\\textup{V ml}=\dfrac{19}{20}\textup{V}~\textup{grams}.

So, the relation between the weight 'M' of the bottle of oil, in grams, is a function of 'V', the volume of oil Sophia used is given by

\textup{M}=590-\dfrac{19}{20}\textup{V}.


7 0
3 years ago
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