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Nimfa-mama [501]
3 years ago
15

(-26) + (+6) - (-67)

Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
7 0

Answer:

87

Step-by-step explanation:

1.  (-26) + (6)=20

2. = -20-(67)

3. -20-(67)=87

4. -87

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Solve the system of equations using elimination: -8x-4y=4 and -5x-y=-11.
ziro4ka [17]

The solutions to the given system of equations are x = 4 and y = -9

<h3>Simultaneous linear equations</h3>

From the question, we are to determine the solutions to the given system of equations

The given system of equations are

-8x-4y=4  --------- (1)

-5x-y=-11   --------- (2)

Multiply equation (2) by 4

4 ×[-5x-y=-11 ]

-20x -4y = -44  -------- (3)

Now, subtract equation (3) from equation (1)

-8x -4y = 4  --------- (1)

-(-20x -4y = -44)  -------- (3)

12x = 48

x = 48/12

x = 4

Substitute the value of x into equation (2)

-5x -y = -11

-5(4) -y = -11

-20 -y = -11

-y = -11 + 20

-y = 9

∴ y = -9

Hence, the solutions to the given system of equations are x = 4 and y = -9

Learn more on Simultaneous linear equations here: brainly.com/question/26310043

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6 0
2 years ago
What is 18÷15÷12÷9= tell me what is this answer pleas tell me
Alla [95]

18/15/12/9 = 0.0111111111111

Have a great evening. I hope this helped! :)

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3 years ago
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How many triangles exist with the given angle measures? 55°, 45°, 90° ?
tankabanditka [31]
More than one triangle <span>exists with the given angle measures. So, this triangle is not equiangular, but has only 2 angles of equal measure.                                                                              

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Help anyone can help me do this question 3,I will mark brainlest.​
Arisa [49]

Answer:

a.20 people take both types of drink.

b.22 people drink milk only..

8 0
3 years ago
How many different ordered pairs (x, y) are there suchthat x is an even integer, where 4 &lt;= x &lt;= 10, and y isan integer, w
german

Correct option is C. There are 20 ordered pairs.

Given that ordered pairs (x,y)

such that x is even integer where 4≤x≤10 and y is an integer.

where 4<y<10.

Then even integer 4≤x≤10 are four i:e

4,6,8,10

And integer 4<y<10 are five i:e

5,6,7,8,9

Then ordered pair are = 4×5=20

<h3>What are ordered pairs?</h3>

An ordered pair is a composition of the x coordinate (abscissa) and the y coordinate (ordinate), having two values written in a fixed order within parentheses. It helps to locate a point on the Cartesian plane for better visual comprehension. The numeric values in an ordered pair can be integers or fractions.

To learn more about ordered pairs from given link

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7 0
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