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
Andreas93 [3]
3 years ago
6

The system shown has the unique solution (2, y, z). Solve the system and select the values that complete the solution. y = 0 y =

2 y = 3 z = 0 z = 2 z = 3 3x-2y+3z=0 (1) -3x - 5y - 5z= -21 (2) x=2 (3)
Mathematics
2 answers:
madreJ [45]3 years ago
8 0
So we are given a system:
3x-2y+3z=0\\
-3x - 5y - 5z= -21
Substitute x = 2 we get the system:
-2y+3z=-6\\
- 5y - 5z= -15
Multiply the first equation by -5 and the second by 2 we get the system:
10y-15z=30\\
- 10y - 10z= -30
Adding the two equations we get :
-25z=0\text{ then}z=0.
We find the value of y by using any of the other equations like this:
-2y=-6\\y=3.
Final solution:
z=0,y=3
Maslowich3 years ago
7 0

Answer:

y = 3

z = 0

Step-by-step explanation:

You might be interested in
Rocky thinks of an odd integer adds the next two consecutive integer which of these could be the sum
tekilochka [14]

Answer:

C

Step-by-step explanation:

1. Let x be the odd integer. Let y be the sum.

x + (x + 1) + (x + 2) = y

3x + 3 = y

Adding two consecutive integers to an odd integer will result in an even integer.

So, you can eliminate choices B and D since they are odd.

Lastly, plug in choices A and C for y and choose the answer that makes x an integer.

Choice C would give you the correct result.

3x + 3 = 44562

3x = 44559

x = 14853

5 0
3 years ago
What is 1.83 repeating as a fraction?
maks197457 [2]
The answer to this question would be: 1 5/6

To change a decimal number into fraction, you need to divide the number on the right of decimal point with 1. In this case, the number is 0.83.
This number is hard since .83 doesn't have many factors. To find the answer you can try to multiply the decimal with some number until it close to 1(no decimal left)
0.83* 2= 1.66
0.83* 3= 2.49 ---> close to half, if you find this number, you can try to double it
0.83* 4= 3.32
0.83* 5= 4.15
0.83* 6= 4.98---> close to 1, that means there is high probability that the number can be divided by 6 
0.83 would be 4.98/6, but if we assume that the number is 0.8333...... then 0.83 would be 5/6. So, 1.83 would be 1 5/6
4 0
3 years ago
Read 2 more answers
Evaluate the expression n=2. <br> 8(n + 1) = ___
kykrilka [37]

Answer:

I believe it's 24

Step-by-step explanation:

because 2+1 is 3 and then 3 times 8 is 24

8 0
3 years ago
Read 2 more answers
As a nurse, part of your daily duties is to mix medications in the proper proportions for your patients. For one of your regular
spayn [35]

Answer:

10 milligrams of Medication A

Step-by-step explanation:

We'll write proportions/ratios for this:

20:16 is the usual proportion, and x:8 is this week's dose. The ratio from A to B has to be equal, so

20/16 = x/8

Cross-multiply:

(20)(8) = (16)(x)

160 = 16x

divide both sides by 16

x = 10

Please let me know if you have questions about this answer.

5 0
3 years ago
What is the difference in length between a 1 1/4 and 3/8
ella [17]

Answer:

7/8

Step-by-step explanation:

1 1/4 is the same as 5/4.

5/4 is also the same as 10/8.

The distance from 3/8 to 10/8 is 7/8.

Hope that helps

8 0
2 years ago
Read 2 more answers
Other questions:
  • The vertex of the graph of a quadratic function is (3,1) and the y intercept is (0,10) Which of the following is the equation of
    7·2 answers
  • How many lines are determined by two points?
    9·1 answer
  • Pat said that the amount of money he has in his pocket is greater than or equal to $5.75 but less than $13.00. Which number line
    6·1 answer
  • How to do the problem
    8·1 answer
  • 4. Exercise 8.1.10 (2 points)(a) Find a recurrence relation for the number of bit strings of positive lengthnthat containthe bit
    14·1 answer
  • What is the value of y?
    7·2 answers
  • What is the value of this expression?<br> (11,328)°
    10·1 answer
  • 16 tickets with 4 winning tickets what is the probabily you get no winning tickets
    11·1 answer
  • At a real estate​ agency, an agent sold a house for ​$311,000. The commission rate is 5.5​% for the real estate agency and the c
    14·1 answer
  • 3xy+x=y-6 how do I solve this?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!