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Rudik [331]
3 years ago
7

5x – 4y=8 -x + 2y = -4 1. 2. 44 - by = -6 4x – 4y = -8

Mathematics
1 answer:
ycow [4]3 years ago
8 0

-x + 2y = -4

-x = -2y - 4

x = 2y + 4

5(2y + 4) - 4y = 8

10y + 20 - 4y = 8

6y + 20 = 8

6y = -18

y = -3

-x + 2y = -4

-x + 2(-3) = -4

-x - 6 = -4

-x = 2

x = -2

The coordinate pair is (-2, -3) (x = -2, y = -3.)

⭐ Please consider brainliest! ⭐

✉️ If any further questions, inbox me! ✉️

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What is the answer need ASAP
ArbitrLikvidat [17]

ANSWER


C. 58°


EXPLANATION


The sum of the interior angles of a triangle is 180°.


We sum all the three angles to obtain,


8x+(14x+2)+(10x+50)=180.


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8x+14x+10x+2+50=180.


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32x+52=180.


Combine like terms to get,


32x=180-52.


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32x=128.



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x=4.


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m\:.



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The correct answer is C

8 0
3 years ago
Why would "-7" in the expression (x^2+3)-(x-7) become positive?
ryzh [129]
You would use the distributive property with the negative. So the second x becomes negative, but since the 7 is already negative it becomes positive. Think of it as if you put the two dashes together you can make a plus sign.
5 0
3 years ago
Read 2 more answers
If the total number of books checked out of the library at your high school is 14,400 and the student population is about 2400.
Whitepunk [10]

The number of books taken by each student is 6.

<h3>What is an average?</h3>

Average is defined as the ratio of the sum of the number of the data sets to the total number of the data. The average actually determines the middle value of the data.

Given that the total number of books checked out of the library at your high school is 14,400 and the student population is about 2400.

The average is calculated by dividing the sum of the total number of items by the total counts of the items.

Average = 14400 / 2400

Average = 6

Therefore, the number of books taken by each student is 6.

To know more about an average follow

brainly.com/question/20118982

#SPJ2

5 0
2 years ago
What is the perimeter of the shape below, given a = 9.60, b = 9.33, c = 4.46, d = 8.56, e = 8.61
GalinKa [24]

Answer:

The perimeter of the shape is of 40.56 units.

Step-by-step explanation:

Perimeter of a shape:

The perimeter of a shape is the sum of the lengths of all its sides.

In this question:

The sides are a = 9.60, b = 9.33, c = 4.46, d = 8.56, e = 8.61.

So

P = a + b + c + d + e = 9.6 + 9.33 + 4.46 + 8.56 + 8.61 = 40.56

The perimeter of the shape is of 40.56 units.

3 0
3 years ago
A cone has a radius of 1 foot and a height of 2 feet. How many comes of Liquid would it take to fill a cylinder with a diameter
maks197457 [2]

find the volume of the cone:

1/3 pi r squared × h

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find the volume of the cylinder:

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2 Pi is÷ 2/3 Pi

= 3

therefore it will take 3 cones of liquid to fill a cylinder with a diameter of 2 and height of 2

7 0
3 years ago
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