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
dybincka [34]
3 years ago
13

What is the solution to the system?

Mathematics
1 answer:
elena-s [515]3 years ago
5 0
2x + y - z = -3 .....multiply by 2
5x - 2y + 2z = 24
-----------------
4x + 2y - 2z = -6 (result of multiplying by 2)
5x - 2y + 2z = 24
----------------add
9x = 18
x = 18/9
x = 2

3x - z = 5
3(2) - z = 5
6 - z = 5
6 - 5 = z
1 = z

2x + y - z = -3
2(2) + y - 1 = -3
4 + y - 1 = -3
y + 3 = -3
y = -3 - 3
y = -6

solution is : (2.-6,1)





You might be interested in
37.5% 1/3 25% and 3/10 least to greatest
barxatty [35]
25% 3/10 1/3 and 37.5%

.25,.30,.33,.375
7 0
3 years ago
What does a cop never forget to say
Kruka [31]
Probably they never forget to give the Miranda warning.
8 0
3 years ago
A bag contains 6 red apples and 6 yellow apples. A sample of 3 apples is drawn. Find the probability that the sample contains mo
lys-0071 [83]

Answer: 21/44

Step-by-step explanation:

Given that:

Bag contains :

6 red apples

6 yellow apples

Number of samples drawn = 3

Probability that sample contains more red than yellow :

Then from the three samples, red = 2 and yellow = 1 or red for all 3

Prob of RRR = (6/12)(5/11)(4/10)= 120 / 1320

Prob RRY = (6/12)(5/11)(6/10)= 150/1320

Prob RYR is (6/12)(6/11)(5/10)= 180/1320

Prob YRR is (6/12)(6/11)(5/10)=180/1320

120/1320 + 150/1320 + 180/1320 +. 180/1320 = 630/1320 =126/264 = 42/88 = 21/44

3 0
3 years ago
Major help please !!!!!!!
ExtremeBDS [4]

3 5/9 divided by -2 2/3

change the mixed numbers to improper fractions

3 5/9 = (9*3+5)/9 = 32/9

-2 2/3 = -(3*2+2)/3 = -8/3

32/9 divided by -8/3

copy dot flip

32/9 * -3/8

-96/72

divide top and bottom by 24

-4/3

=-1 1/3

Answer: - 1 1/3

4 0
3 years ago
Write 28 1/4 as a decimal.​
Naya [18.7K]

Answer:

28.25

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Other questions:
  • The federal reserve conducts a 10 million open market purchase of government bonds. If the required reserve ratio if 10 percent,
    13·1 answer
  • A graphic artist earns $22 an hour and she works 40 hours a week. What is her weekly wage
    5·2 answers
  • What is an expression containing variables,numbers, and operation symbols?
    8·1 answer
  • Which of the following side lengths are the legs? 6, 14, and 12
    9·2 answers
  • RM = x + 3 and MS = 2x –1 x=_______<br><br> and RM =______<br><br> HELP
    10·1 answer
  • Consider the following intermediate chemical equations.
    12·1 answer
  • 1.338, 1.729, 1.755, 1.153, 1.806, 1.993, 1.45, 1.152, 1.935, 1.095
    15·1 answer
  • Mr. Moore drove the first half of his journey at an average speed of 96 km/h for 2 hours. He then drove the remaining half of hi
    14·1 answer
  • Solve the system of linear equations.<br><br> −x+2y=7<br> x−2y=7
    5·2 answers
  • Daud bought a plot of land with an area of 6 2/5 km. He divided the land equally into 8 small plots. What was the total area of
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!