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
kherson [118]
2 years ago
9

Last question! Please show work. Really need to get this done in 1 hour

Mathematics
1 answer:
Sav [38]2 years ago
7 0

Answer:

x=1; y=2; z=3

Step-by-step explanation:

Rearrange for convince:

2y-4z+6x = -2

-4y+2z-3x=-5

-6y+3z+4x=1

Now we take to pairs and eliminate the same var.:

2y-4z+6x = -2 *2

-4y+2z-3x=-5

and

-4y+2z-3x=-5 *-3

-6y+3z+4x=1. *2

We get:

4y-8z+12y=-4

-4y+2z-3x=-5

= -6z+9x=-9

and

12y-6x+9x=15

-12y+6x+8x=2

= 17x=17

We now know x = 1, so z is:

-6z+9=-9

-6z=-18

z=3

Let’s grab the first formula and find y:

6+2y-12=-2

6+2y=10

2y=4

y = 2

You might be interested in
You start driving south for 2 miles, turn left, and drive east for another 9 miles. At the end of driving, what is your straight
yulyashka [42]
Use the Pythagorean Theorem: .

So your straight line distance is 10.

We can also recognize this as a multiple of the 3-4-5 Pythagorean triple. We have , with x being the desired value. Therefore x=10, like previously.
4 0
3 years ago
Read 2 more answers
Need help with all parts please show you work for each part
bezimeni [28]
Vinegar is the x or horizontal oil is the y or vertical
\frac{3}{2}  =  \frac{y}{x}  \\ 3x = 2y \\ y =  \frac{3}{2} x
the point represent the amount of vinegar and oil so for 1 tbsp vinegar you need 1.5tbsp oil
4 0
3 years ago
To subtract 78 - 35 mentally Carmen out of 5 to each number and Karen a tattoo to each number will both met at work to find the
Vinil7 [7]
215 is the answer because 78-35 =43 43×5=215

4 0
3 years ago
When hourly employees work beyond 40 hours in a week, federal law requires that they receive __________ pay. A. commissioned B.
Zolol [24]

Answer: D

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
-½(x + 1¼) = - 3 + ¼x <br> Solve for x
crimeas [40]

Answer:

x = (23 + √ 497 / 8) ,  (23 − √ 497  /8)

x=5.66168710

Step-by-step explanation:

im too lazy. use math-way

6 0
3 years ago
Other questions:
  • I have four questions please answer all! With data/evidence
    11·1 answer
  • Solve using substitution
    8·1 answer
  • What's another way to express the expression [4(17) + 3(25)] x 5?
    15·1 answer
  • Your poor health causes you to miss one work day every two weeks. You do not get paid when you are out sick. You normally work 8
    13·1 answer
  • To convert 1.3 miles into inches which two ratios could you multiply by
    5·1 answer
  • Use substitution to solve the system of equations y=x+1.75 4x-2y=4
    5·2 answers
  • 2. Alex drew a scale drawing of an auditorium. He used the scale 3 inches = 2 feet. If the stage is 30 inches in the drawing, ho
    6·1 answer
  • Please help!!!
    14·1 answer
  • Which relation is a function <br> {(-4,-4), (2, -4), (7,3), (7, -1)}
    10·1 answer
  • Solve for xxx.
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!