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ser-zykov [4K]
3 years ago
13

The table below shows four systems of equations:

Mathematics
1 answer:
Montano1993 [528]3 years ago
6 0
4x − 5y = 2
3x − y = 8 
x= 38/11
y=26/11

4x-5y=2
3x − 8y = 4 
x= -4/17
y=-10/17

4x - 5y =2
13x − 8y = 26 
x= 38/11
y=26/11

4x-5y=2
10x + 3y = 15
x= 81/62
<span>y=20/31
</span><span>
Therefore, the correct answer is the last option.

</span><span>System 1 and system 3, because the second equation in system 3 is obtained by adding the first equation in system 1 to three times the second equation in system 1. </span><span>


</span>
You might be interested in
What should you substitute for y in the bottom equation to solve the system by the substitution method?
Contact [7]
Answer: y= -x-5


Step 1: Determine which equation to change

Since we will be using the substitution method, we will need to substitute y from the bottom equation with information from the top equation. This will be the equation we change.

Step 2: Change the equation

Let’s rewrite the equation we will be working with.

3x+3y= -15

Our goal will be to get y alone on the left side. To start, let’s subtract 3x from both sides, leaving only 3y on the left side.

3x+3y= -15
3y= -3x-15

Now we need to get y completely alone by eliminating the coefficient of 3. Let’s do this by dividing each term by 3.

3y= -3x-15
y= -x-5


This is your answer. Hope this helps! Comment below for more questions.
3 0
3 years ago
Can u pls help me with this question ​
Romashka [77]

Answer: It would be B 9/50

Step-by-step explanation: if you take 3/7 and x it by 0.1 you get 0.04285714285 and then if you divide that by 5/21 you get 0.18 which equals 9/50 as a fraction

8 0
3 years ago
What is the measure of ZB?<br> 28<br> 36<br> B<br> [?] degrees<br> Enter
Sindrei [870]
All triangles have a measurement of 180 degrees. Therefore, we can use this information to make an equation to find the value of angle B.

Angle B = 180 - (28 + 36)
Angle B = 180 - 64
Angle B = 116

So, angle B is equal to 116 degrees.
4 0
3 years ago
The points in the table lie on a line. Find the slope of the line.
wolverine [178]
Answer

Y=5x+2

I’m not sure but I think that’s the answer
8 0
3 years ago
What is the equation of a line, in general form, that passes though points (-1,2) and (5,2)?
Tom [10]

Answer:

A

Step-by-step explanation:

To write the equation of the line. first calculate the slope using the slope formula.

m = \frac{y_2-y_1}{x_2-x_1} = \frac{2-2}{5--1}= \frac{0}{6} = 0

Since the slope of this line is 0, it is horizontal and has the form y=b where b is the y-coordinate. So y = 2 is the equation. In general form, it would be y-2 = 0

3 0
3 years ago
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