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
35/25 expressed as a decimal and a percent is ___and___. Also, explain how you got your answer.
likoan [24]
Decimal: 1.4 (35 divided by 25 is 1.4)
Percentage: 140% ( move decimal point two spaces to the right)
4 0
3 years ago
Read 2 more answers
The base of a triangle is 75 cm and its height is 12<br> 12 cm. Find its area.
lisabon 2012 [21]

Answer:

Here is your answer

Step-by-step explanation:

Solution,

here,

Base is 75 cm

Height is 12 cm

Now,

Area of triangle=1/2×b×h

=1/2×75×12

= 900/2

=450. ans

3 0
2 years ago
Multiply. Express your answer as a fraction in<br> simplest form.<br> 8.33 x 144
mr Goodwill [35]
Answer
65-44.78>4
I hope this helps:)
4 0
3 years ago
The following refers to a purchase of a machine by a company on January 1, 2016
grandymaker [24]

The semi-annual net cash flow the company must achieve in order for the purchase to be made is $2500.

<h3>How to calculate the cash flow?</h3>

Number of period = 6 × 2 = 12

Rate = 4% / 2 = 2%

Annual cash flow × PVIFA × (2% × 12) + $7500 × PVIF(2%,12) - $32348 = 0

Annual cash flow × 10.5753 = $32348 - $7500 × 0.7885

Annual cash flow × 10.5753 = $32348 - $5914

Annual cash flow × 10.5753 = $26434

Annual cash flow = 26434/10.5753

Annual cash flow = $2500

Learn more about cash flow on:

brainly.com/question/735261

5 0
2 years ago
Rafael wants to wallpaper the back wall of his bedroom. The wall is in the shape of a rectangle. Its length is 13 feet and its w
kogti [31]

Answer:

$819

Step-by-step explanation:

First we find the area of the wall so we multiply 13ft x 9ft.

13ft x 9ft = 117ft

We know each square foot is equal to $7. So now we multiply 117 x 7 to get the total cost.

117 x 7 = $819

4 0
3 years ago
Read 2 more answers
Other questions:
  • I need to name the type of special pairs of angles shown. Please and thank you​
    14·1 answer
  • On a soccer team, 8 out of 19 players surveyed say they had two or more siblings. The league has 570 players. Which is the best
    10·1 answer
  • Find the area of the circle
    14·1 answer
  • The top of a square table is covered with four equal square tiles. If the side length of each tile is decreased by 50%, how many
    5·2 answers
  • A cylinder has a radius 26 and a volume of 63,679 ft3.
    5·2 answers
  • Given the formula PV = nRT , solve for the variable T
    9·1 answer
  • 2(2x + 3)^2– 7(2x + 3) - 4
    15·1 answer
  • 7 1/2 /(4 1/2-5 1/8) = ?
    9·1 answer
  • PLEASE HELP ME, I HAVE NO IDEA! Find an equation for the line below.
    12·1 answer
  • AC = 3x -8, BC = -7 + 2x, and AB = 8.<br> Find BC.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!