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Studentka2010 [4]
3 years ago
5

Twice a number deceased by 7.translate in algebraic expressions​

Mathematics
2 answers:
Dafna1 [17]3 years ago
8 0

Twice a number (2x) decreased by 7 (- 7).

2x - 7

Two times a specfic number (x) subtracted by 7.

Alekssandra [29.7K]3 years ago
3 0
The algebraic expression is:

2x-7

two times some number (x) then subtract seven
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X/7=3/2 solve equation, check solution<br>​
nexus9112 [7]

Answer:

Step-by-step explanation:

X/7=3/2  multiply by : 5

x = 21/2

6 0
3 years ago
What is the answer? Please help me!!! PLEASE!!!!
sladkih [1.3K]

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a.) y=1/3x +3

Step-by-step explanation:

8 0
2 years ago
Write an expression equal to 11³​
NikAS [45]

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11x11x11=11³

Step-by-step explanation:

11 to the third means 11 times itself 3 times

3 0
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Read 2 more answers
Please, Help.<br>the answer isn't 30°
vagabundo [1.1K]

The <em>missing</em> angle of the <em>right</em> triangle ABC has a measure of 30°. (Correct answer: A)

<h3>How to find a missing angle by triangle properties</h3>

Triangles are <em>geometrical</em> figures formed by three sides and whose sum of <em>internal</em> angles equals 180°. There are two kind of triangles existing in this question: (i) <em>Right</em> triangles, (ii) <em>Isosceles</em> triangles.

<em>Right</em> triangles are triangles which one of its angles equals 90° and <em>isosceles</em> triangles are triangles which two of its sides have <em>equal</em> measures.

According to the statement, we know that triangle BQR is an <em>isosceles</em> triangle, whereas triangles ABC, ANB and NBC are <em>right</em> triangles. Based on the figure attached below, we have the following system of <em>linear</em> equations based on <em>right</em> triangles ABC and NBC:

<em>2 · x + 90 + θ = 180</em>   (1)

<em>(90 - x) + 90 + θ = 180</em>   (2)

By equalizing (1) and (2) we solve the system for <em>x</em>:

<em>2 · x = 90 - x</em>

<em>3 · x = 90</em>

<em>x = 30</em>

And by (1) we solve the system for <em>θ</em>:

<em>θ = 180 - 2 · x - 90</em>

<em>θ = 30</em>

<em />

The <em>missing</em> angle of the <em>right</em> triangle ABC has a measure of 30°. (Correct answer: A) \blacksquare

To learn more on right triangles, we kindly invite to check this verified question: brainly.com/question/6322314

8 0
2 years ago
Which inverse operation would be used to verify the follong equation? 102 / 3 = 34
Flauer [41]
Multiplication would be the inverse operation of division. so it would be, 3 x 34 = 102
6 0
3 years ago
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