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
kkurt [141]
4 years ago
13

PLEASE HELP!!!! 25 POINTS!!!!! I NEED THIS ASAP!!!!!!

Mathematics
1 answer:
Korvikt [17]4 years ago
3 0

Answer:

\large\boxed{\left\{\begin{array}{ccc}y-17z=-15&(a)\\-2y+17z=13&(b)\end{array}\right}

Step-by-step explanation:

\left\{\begin{array}{ccc}2x-3y+5z=5&(1)\\4x-5y-7z=-5&(2)\\-6x+7y+2z=-2&(3)\end{array}\right\\\\\\\text{From (1) and (2)}\\\left\{\begin{array}{ccc}2x-3y+5z=5&(1)&\text{multiply both sides by (-2)}\\4x-5y-7z=-5&(2)\end{array}\right\\\underline{+\left\{\begin{array}{ccc}-4x+6y-10z=-10\\4x-5y-7z=-5\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad y-17z=-15\qquad(a)

\text{From (1) and (3)}\\\left\{\begin{array}{ccc}2x-3y+5z=5&(1)&\text{multiply both sides by 3}\\-6x+7y+2z=-2&(3)\end{array}\right\\\underline{+\left\{\begin{array}{ccc}6x-9y+15z=15\\-6x+7y+2z=-2\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad\qquad-2y+17z=13\qquad(b)

You might be interested in
Which is the best estimate for the number of items that customers bought during a trip to the grocery store one day?
n200080 [17]
The answer is going to be15
7 0
3 years ago
Read 2 more answers
Can someone help me Write an equation for this graph?
Paladinen [302]
Y=2/3x-1 is the equation:)
4 0
3 years ago
Solve the equation 30=-5(m+6)+m
notka56 [123]
30 = -5(m+6) + m
30 = -5m - 30 + m 
0 = -4m
0 = m
6 0
3 years ago
Consider the following equation. cos x = x3 (a) Prove that the equation has at least one real root. f(x) = cos x − x3 is continu
skelet666 [1.2K]

Answer:

b. 0.86, 0.87

Step-by-step explanation:

a. Find attached solution to a

4 0
3 years ago
I really need an answer as soon as possible. 10 pts worth it
viva [34]

Answer:

A. Correct: When we plug in g(x) for the x in f(x), we get H(x).

B. Correct: When we plug in g(x) for the x in f(x), we get H(x).

C. Correct: When we plug in g(x) for the x in f(x), we get H(x).

D. Correct: When we plug in g(x) for the x in f(x), we get H(x).

Step-by-step explanation:

<em>Brainliest, please!</em>

8 0
3 years ago
Other questions:
  • Csc x=2, for 0 less than or equal to x less than or equal to pi/ 2
    9·1 answer
  • Which expression represents the fourth term in the binomial expansion of (e + 2f)10?
    5·2 answers
  • Please help. Due tomorrow
    8·1 answer
  • There are 454 fuels are there in 12rows
    13·2 answers
  • Show Your Work. Find The Length of SU ~(Will Give Brainliest) :)
    10·2 answers
  • Find the volume of a right circular cone that has a height of 10.4 m and a base with a
    5·1 answer
  • Am I right if not then please tell me!
    8·2 answers
  • PLEASE ANSWER THIS ASAP !!!!!
    9·1 answer
  • 8.
    6·1 answer
  • Fiona earns $10 for mowing each lawn and $5 per hour for her work. Write an inequality to show how many lawns she needs to mow i
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!