1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Over [174]
3 years ago
11

Solve the system by elimination. -2x+2y+3z=0 -2x-y+z=-3 2x+3y+3z=5

Mathematics
1 answer:
KengaRu [80]3 years ago
8 0
-2x + 2y +  3z = 0 → 2x - 2y -   3z = 0 → 2x - 2y - 3z = 0
-2x -   1y +  1z = -3 → 2x + 1y -    1z = 3 → 2x + 1y -  1z = 3
2x +   3y + 3z = 5 →  2x + 3y + 3z = 5            -3y - 2z = -3

-2x + 2y +  3z = 0 → 2x - 2y -   3z = 0
-2x -   1y +  1z = -3 → 2x + 1y -    1z = 3 → 2x + 1y -   1z = 3
2x +   3y + 3z = 5 →  2x + 3y + 3z = 5 → 2x + 3y + 3z = 5
                                                                           -2y - 4z = -2

-3y - 2z = -3 → -6y - 4z = -6
-2y - 4z = -2 → -2y - 4z = -2
                                 -4y = -4
                                  -4     -4
                                     y = 1

  -3y - 2z = -3
-3(1) - 2z = -3
   -3 - 2z = -3
 + 3          + 3
         -2z = 0
          -2    -2
            z = 0

    -2x + 2y + 3z = 0
-2x + 2(1) + 3(0) = 0
       -2x + 2 + 0 = 0
             -2x + 2 = 0
                    - 2  - 2
                    -2x = -2
                     -2     -2
                       x = 1
              (x, y, z) = (1, 1, 0)
You might be interested in
To help divide a group into 4 teams, the teacher brought out a bag with equal numbers of 4 different colored popsicle sticks (gr
NeX [460]
The set of all possible events Ω

Ω = 24 ( 4*7 = 28 stick)

<span>set of events favorable A
A = 7 ( </span><span>sticks of green is 7)

</span><span>Probability P
P(A) = A/</span>Ω = 7/28 = 1/4 = 0,25

Answer A
<span>The first person has the ability to draw seven green sticks of twenty-four </span>
3 0
3 years ago
What are the coordinates of vertices of quadrilateral ABCD? use the coordinates to find the length of DA.
erma4kov [3.2K]

Answer:The slope of AB is - 2,

Slope of BC is  

Slope of CD is  

Slope of AD is ,

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
If you help will make you brainlest
Bumek [7]

Answer:

see below

Step by step explanation

\because \: revenue = price \times demand \\   \therefore \: r(x) = x.d(x) \\ \therefore \: r(x) =x(200 - 2x)  \\\therefore \: r(x) = \boxed{200x - 2 {x}^{2}  }

5 0
2 years ago
How can I make a fraction in to decimals
scZoUnD [109]

Answer:

It is pretty easy.

Step-by-step explanation:

All you have to do is just divide the numerator by the denominator.

Brainliest appreciated

7 0
3 years ago
On the first day in each month, Enid deposited $4 into her bank account and Jim deposited $3 into his. They opened these account
ohaa [14]

Answer:

The amount of money in Enid bank account can be written as a linear equation.

Ye = Xe + $4*m

where Ye is the money that Enid has in her account, m is the number of months that have passed since she opened it, and Xe is the initial deposit.

For Jim, the equation is similar:

Yj = Xj + $3*m

where Yj and Xj are similar as above.

Between May 15 and December 31 of the same year, we have 7 months (where i am counting December because the deposit is made in the first day of the month).

Then we have that:

Ye = $72 = Xe + $4*7 = Xe + $28

Xe = $72 - $28 = $44

So in May 15, Enid deposited $44.

For Jim we have:

Yj = $72 = Xj + $3*7 = Xj + $21

Xj = $72 - $21 = $51

So in May 15, Jim deposited $51.

5 0
2 years ago
Other questions:
  • Analyzing a Graph For each graph below, identify any interval(s) where the rational function is a) positive, b) negative, c) inc
    10·1 answer
  • (8z^8/4z^4)^-4 please help me to solve this
    8·1 answer
  • In 1990, the population of a town was about 5,000 people. Each year for the next 10 years the population increased by about 500
    14·2 answers
  • Is the Square root of 5 greater than or less than 5/7 ?
    11·2 answers
  • Which equation represents seven times a number decreased by 2 is 19? A)   7 + x -­ 2 = 19 B)   7x + 2 = 19 C)   2x - ­ 7 = 19 D)
    15·1 answer
  • Is this right?? if not help please!!
    14·1 answer
  • A stick is x meters long. a string is 4 times as long as the stick.
    14·2 answers
  • Label ABC with the following information.<br> BC = 38<br> AC = 50<br> Find m/C.
    13·1 answer
  • How many cubes that measure 2 inches by 2 inches by 2 inches would fit inside a cube that measures 10 inches by 10 inches by 10
    14·1 answer
  • Which equation matches the graph?<br> PLEASE HELP MEEEE
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!