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
VLD [36.1K]
3 years ago
5

PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER

Mathematics
2 answers:
elixir [45]3 years ago
8 0

Answer:

It's (5,-2,0)

Step-by-step explanation:

1. 5 - -2+2(0)= 7 = 7 true

2. 2(5)+-2+0= 8 = 8 true

3. 5-0=5 = 5 true

avanturin [10]3 years ago
8 0

\left\{\begin{array}{ccc}x-y+2z=7&(1)\\2x+y+z=8&(2)\\x-z=5&(3)\end{array}\right\\\\(3)\qquad x-z=5\qquad\text{add z to both sides}\\.\qquad x=5+z\\\\\text{Substitute it to (1) and (2):}\\\\\left\{\begin{array}{ccc}(5+z)-y+2z=7\\2(5+z)+y+z=8\end{array}\right\\\\\left\{\begin{array}{ccc}5+z-y+2z=7&\text{subtract 5 from both sides}\\10+2z+y+z=8&\text{subtract 10 from both sides}\end{array}\right

\underline{+\left\{\begin{array}{ccc}3z-y=2\\3z+y=-2\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad6z=0\qquad\text{divide both sides by 6}\\.\qquad\boxed{z=0}\\\\\text{Put the value of z to the second equation and to (3)}\\\\3(0)+y=-2\to\boxed{y=-2}\\\\x=5+0\to\boxed{x=5}\\\\Answer:\ \boxed{x=5,\ y=-2,\ z=0\to(5,\ -2,\ 0)}\to\boxed{C}

You might be interested in
1. If u were to draw a tree diagram showing all the possible outcomes for rolling a six sided die twice, how many total outcomes
Furkat [3]
1. 2). 2. 1) 3 * 2 =6
8 0
3 years ago
What's the improper fraction for 3 and 5/6ths?
wlad13 [49]
The correct answer is 23/6. Hope this helps.
5 0
3 years ago
Solve for x please<br> 4.5x + 11.5 = 8.5x + 3.5
leonid [27]

Answer: have you tried to use photomath?


6 0
2 years ago
Read 2 more answers
Which function is an odd function?
hjlf
A function is odd if:
f ( - x ) = - f ( x )
A ) f ( - x )= 0.8 ( - x ) ^3 = - 0.8 x^3 = - f ( x )
Answer: A ) f ( x ) = 0.8 x^3 is an odd function. 
Functions B ) and C ) are even and D) is neither even nor odd.
8 0
3 years ago
What number is 54% of 125 type an integer or a decimal round to the nearest tenth
eimsori [14]
Answer is 67.5

To get this you must first turn 54% into a decimal.
54%---> .54
125*.54= 67.5
So 54% of 125 is 67.5 <span />
4 0
3 years ago
Read 2 more answers
Other questions:
  • Remove all perfect squares from inside the square root 25x^4
    14·1 answer
  • What is15 qt/h= gal min
    6·2 answers
  • 1/3(z+4)-6=2/3(5-z) solve for z and check solution
    14·2 answers
  • While training for an Ironman competition, Johnson swam 0.86 km, biked for 22.4 km, and ran 4.25 km. Johnson completed this rout
    9·1 answer
  • 1, I cannot fail this if I do I have a F in math!! Please make sure u know it’s correct I can’t do it alone.
    10·1 answer
  • Identify the benchmark you can use to find an equivalent percent for the ratio. Then find the equivalent percent.
    13·1 answer
  • You buy a house for $250,000. Its value increases by 3% every year, How much is your house worth in 5 years?
    14·2 answers
  • Define equivalent expressions. Give an example of two equivalent expressions.
    9·1 answer
  • I WILL GIVE BRAINLIEST
    6·2 answers
  • The point (3, 6/5) lies on the graph reprrsenting a proportional relatiomship which of the folowimg point also lie on the graph
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!