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Mrrafil [7]
3 years ago
14

Basing your answer on the appearance of the figures below, select true or false. △DEF ≅ △YXW

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
5 0
It's true sir, anymore questions i can answer?

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Un ingeniero civil a cargo de una obra contrata una cierta cantidad de obreros. Estima que, si le
BabaBlast [244]

Al plantear un sistema de ecuaciones lineales, encontramos que el número de obreros que contrató el ingeniero civil fue 50.

Para encontrar el número de obreros que el ingeniero contrató debemos plantear un sistema de ecuaciones lineales de dos ecuaciones con dos incógnitas, tal como sigue:

M - 1400*x = -8000   (1)

M - 1200*x = 2000   (2)

En donde:

M: es la incógnita igual al monto de dinero del ingeniero

x: es la incógnita igual al número de obreros

De la ecuación (1) tenemos:

M = 1400*x - 8000   (3)

Podemos encontrar el valor de x (número de obreros), introduciendo la ecuación (3) en la ec (2):

1400*x - 8000 - 1200*x = 2000

200*x = 10000

x = 50

El monto de dinero inicial del ingeniero sería entonces (ec 3):

M = 1400*50 - 8000 = 62000

Por lo tanto, el número de obreros que contrató el ingeniero es 50.

Puedes aprender sobre otro método de resolución de sistemas de ecuaciones lineales ingresando acá: brainly.com/question/10831551?referrer=searchResults                                    

                                                                                                   

Espero que te sea de utilidad!

8 0
3 years ago
What’s the answer to 34=-2(1–9x)
vaieri [72.5K]

Your answer would be x=2

8 0
3 years ago
Read 2 more answers
Identify the natural number that is closest to 4–√.<br><br> 2<br> 3<br> 1<br> 4
Minchanka [31]
I think the result are 1 and 4
7 0
3 years ago
GIVING BRAINLIEST PLEASE ANSWER QUICKLY I APPRECIATE IT SO MUCH PLS HELP im like begging
Crank

Answer:

x=28

Step-by-step explanation:

cos60°=14/x

0.5=14/x

x=14/0.5

x=28

5 0
2 years ago
Read 2 more answers
The elimination method is ideal for solving this system of equations. By which number must you multiply the second equation to e
shutvik [7]

Given:

The system of equations is

x+3y=42       ...(i)

2x-y=14        ...(ii)

To find:

The number that must be multiplied with the second equation to eliminate the y-variable.

Solution:

Coefficient of y variable in equation (i) is 3 and in equation (ii) is -1.

To eliminate y-variable the absolute value of coefficients of y-variables should be same.

So, we need to multiply the second equation by 3 to eliminate the y-variable

Multiplying equation (ii) by 3, we get

6x-3y=42      ...(iii)

Adding (i) and (iii), we get

x+3y+6x-3y=42+42

7x=84

Divide both sides by 7.

x=12

Put x=12 in (i).

12+3y=42

3y=42-12

3y=30

Divide both sides by 10.

y=10

Therefore, x=12 and y=10.

7 0
3 years ago
Read 2 more answers
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