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
Alchen [17]
4 years ago
12

Solve the following system of equations and select the correct answer below:

Mathematics
1 answer:
Sauron [17]4 years ago
5 0
3x + 3y + 2z = -5 ⇒ 3x + 3y + 2z = -5 ⇒ 3x + 3y + 2z =   -5
1x + 1y + 3z = -4 ⇒ 1x + 1y + 3z = -4 ⇒ 3x + 3y + 9z = -12
3x -  1y + 5z = -8                                                    -7z = 7
                                                                                -7    -7
                                                                                  z = -1
3x + 3y + 2z = -5                                                      
1x + 1y + 3z = -4 ⇒ 1x + 1y + 3z = -4
3x -  1y + 5z = -8 ⇒ 3x -  1y + 5z = -8
                                        4x + 8z = -12     

     4x + 8z = -12
 4x + 8(-1) = -12
       4x - 8 = -12
           + 8    + 8
            4x = -4
             4      4
              x = -1

        3x + 3y + 2z = -5
3(-1) + 3y + 2(-1) = -5
           -3 + 3y - 2 = -5
             3y - 3 - 2 = -5
                  3y - 5 = -5
                      + 5  + 5
                       3y = 0
                        3     3
               (x, y, z) = (-1, 0, -1)
You might be interested in
What is 1/2b x 6/10 ?
Brut [27]

Answer:

the answer to this question is 2.4b

5 0
3 years ago
At a farm the ratio of cows to horses was 7:2. If there were 21 cows at the farm, how many horses were there?
beks73 [17]

Answer: 6 horses bc you just have to multiply by 3

6 0
3 years ago
Read 2 more answers
Identify all factors of the expression 〖4x〗^2+17x-15.
Basile [38]

The factors of given expression are: -5 and 3/4

Step-by-step explanation:

Given equation is:

4x^2+17x-15

Making pairs for the mid-term 17x by factoring the product of co-efficient of 4x^2 and 15

4x^2+20x-3x-15

= 4x(x+5) - 3(x+5)

=(4x-3)(x+5)

Now

4x-3 = 0\\4x = 3\\x = \frac{3}{4}

x+5 = 0\\x = -5

Hence,

The factors of given expression are: -5 and 3/4

Keywords: Quadratic equation, factors

Learn more about quadratic equation at:

  • brainly.com/question/10435836
  • brainly.com/question/10541435

#LearnwithBrainly

8 0
4 years ago
Help please? Brainliest and points!
gtnhenbr [62]

The answer is going to be B. 15

8 0
3 years ago
Read 2 more answers
Plz help me on my last question thanks
lidiya [134]
Ok if you would to take away 3 it would increase the mean median and mode 

5 0
4 years ago
Other questions:
  • Daija graphed the relationship modeled by the equation y = 4x.
    5·1 answer
  • Calculate total distance?
    10·1 answer
  • Please show me how you got the answer thanks.
    6·1 answer
  • 1. Find p:<br> 2m + Zn =p<br> Let m= 4 and n= -5
    11·2 answers
  • ill give the brain my duuudes plot the x- and y-intercept to graph this equation y=-1/2x-3. plz plot on graph :))
    14·2 answers
  • SOMEONE PLEASE HELP ME!!!!! URGENT
    10·1 answer
  • Which of the following expressions, if any, are equal for all real numbers "m"? I. square root of m^2 II. |-m| III. - |m| 
    9·1 answer
  • What two things do you NEED to write an equation in point-slope form?
    8·2 answers
  • Find the value of x. Show all work.<br> (7x + 6)°<br> (6x - 7)º
    7·1 answer
  • Given that the coefficient of the third term in the expansion of (1+3x)^n, in ascending powers of x, is 1539, find the value of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!