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
sesenic [268]
3 years ago
9

Help solve this picture

Mathematics
1 answer:
blagie [28]3 years ago
6 0
X + y - z = 9
3x - y + z = -13
____________(+)___
4x =  -4 => x = -1 => y - z = 10;
But, x - 2y + 4z = -1 => -2y + 4z = 0 => -y + 2z = 0;

 y  -  z = 10
-y + 2z = 0
_________(+)__
/       z = 10 =>   y = 20 .

A. There is one solution. The solution is ( - 1, 20, 10 ).
You might be interested in
Seven pizzas are shared equally between three friends. What fraction of pizza does each friend get? Write your answer as a mixed
vredina [299]

Seven pizzas: 7 pizzas

Shared between 3 friends: 7 pizzas / 3 friends

Simplify the fraction:

7 / 3

(3 goes into 7 twice, 7 - 6 = 1)

2 1/3

The fraction of pizza that each friend gets is 2 1/3.

Hope this helps!! :)

8 0
3 years ago
Read 2 more answers
Write the number seven and one - third as a decimal rounded to the nearest hundredth
bagirrra123 [75]
Well you know you keep the 7. 1/3 well you see it as .3333 so just go 7.33 because 7.333 and since it's a 3 you keep it.
4 0
3 years ago
Read 2 more answers
Definicion del concepto de numero
NNADVOKAT [17]

Answer:

1.

Mathematical concept that expresses an amount in relation to the computer unit; results from counting the elements that make up a set.

"Cardinal number"

2.

A graphic sign or set of graphic signs that expresses or represents that amount.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The value of a car depreciates by 35% each year
asambeis [7]

Answer:

£8400

Step-by-step explanation:

5 0
3 years ago
Determine whether each question is biased. Explain your answer.
Kisachek [45]
Biased because the survey was conducted in a limited field of people aka health club which does not include other people, perhaps an unhealthy club? Or the people who are not a part of the health club? Or people who do not care about their health?
8 0
3 years ago
Read 2 more answers
Other questions:
  • 10×3/5 A. 12 B. 5 C. 6*** D.8 1/5×8? A. 5/8 B. 1 2/5 C. 1 3/5*** D. 1 4/5 Two thirds of jacks sports cards are baseball cards. i
    14·1 answer
  • Must be put in groups of 14 square units or 16 square units triangle EFG
    11·1 answer
  • Write the recursive formula for 6, 17, 28, 39, 50
    5·1 answer
  • Convert the units of weight.
    15·1 answer
  • Find the radian measure of an angle of -280°
    11·1 answer
  • In the equation A=1/2bh What does each of the variables stand for
    12·2 answers
  • At a carnival luke bought 33 tickets . if he used 3 tickets trying to win the ring toss game,what is the ratio of tickets he has
    10·2 answers
  • Solve for y.<br><br>212-y=282
    11·2 answers
  • HELPP!! WHAT ARE THE ANSWERS??!​
    15·1 answer
  • Bianca wrote the steps for her solution to the equation 2.3 + 8(1.3x – 4.75) = 629.9. She left out the description for the last
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!