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goldenfox [79]
3 years ago
8

Solve this system of linear equations. separate the x- and y- values with a coma. -2x=8-6y

Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0
<span>The y variable has the same coefficient so use elimination (subtract equations).

    -2x = 8 - 6y
-(-15x = 21 - 6y)
------------------------
    13x = -13 + 0

x = -1
Use this to find y in either equation. </span>
<span>-2(-1) = 8 - 6y
2 = 8 - 6y
2 - 8 = -6y
-6 = -6y
y = 1

(x,y) = (-1, 1)
</span>
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PLEASE HELP! Explain your answer, THANK YOU!
Misha Larkins [42]

Answer:

-2/-3

Step-by-step explanation:

(75, 60) (45, 40)

75       60               since 75 is larger than 45, we subtract = -30

45       40               since 60 is larger than 40, we subtract = -20

= -20/-30

reduce

= -2/-3

3 0
4 years ago
Find the volume of a cylinder with radius 5.7cm and height 10 cm, correct to 1 decimal place​
Veseljchak [2.6K]

\textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ r=5.7\\ h=10 \end{cases}\implies \begin{array}{llll} V=\pi (5.7)^2(10)\implies V=324.9\pi \\\\\\ V\approx 1020.7 \end{array}

8 0
2 years ago
Find The Value x ~<br><img src="https://tex.z-dn.net/?f=%20%5Clarge%20%5Csf%20%5Cunderline%20%5Cbold%7B4x%20%2B%2026%20%3D%2016%
Nikitich [7]

The value of x in the algebraic equation is: -5/2.

<h3>How do you Find the Value of a Variable in an Algebraic Equation?</h3>

Given an algebraic equation, to find the unknown value of x, solve by isolating x in the equation.

Given:

4x + 26 = 16

Subtract 26 from both sides

4x = 16 - 26

4x = -10

Divide both sides by 4

x = -10/4

x = -5/2

Therefore, the value of x in the algebraic equation is: -5/2.

Learn more about algebraic equation on:

brainly.com/question/2164351

6 0
3 years ago
Read 2 more answers
Number 6.i need full working​
Pavlova-9 [17]
You can do this on a calculator if you search up online radius and height measurement calculator.
4 0
3 years ago
Please help you guys, Look at the picture attached
Nookie1986 [14]

Answer:

Step-by-step explanation:

if (x,y) is the centroid. Then x=(x1+x2+x3)/3,y=(y1+y2+y3)/3

5.

x=(-2+4+10)/3=4

y=(6+0+6)/3=4

centroid=(4,4)

6.

x=(3+5-2)/3=2

y=(3-1+1)/3=1

centroid=(2,1)

8 0
3 years ago
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