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
nasty-shy [4]
4 years ago
12

Solve the system of equations:

Mathematics
1 answer:
Ahat [919]4 years ago
8 0

Answer:

Step-by-step explanation:

z = 3

2y + z = 1

2y + 3 = 1        {substituting z =3}

2y = 1 -3

2y = -2

y = - 2/2

y = -1

2x +3y +2z = 13

2x + 3 * (-1) + 2*3 = 13      { {substituting z =3} and y = -1}

2x -3 + 6 =13

2x + 3 = 13

2x  = 13 - 3

2x= 10

x = 10/2

x = 5

You might be interested in
the number of kilometers a car can drive varies directly with the liters of fuel in the car. this car can travel 476 kilometers
notka56 [123]

For this case we have that the relationship is direct.

Therefore, we have:

y = k * x

Where,

y: distance traveled in kilometers

x: number of liters of fuel

k: proportionality constant

We must look for the value of k. For this, we use the following data:

This car can travel 476 kilometers on 17 liters of fuel.

Substituting values we have:

476 = k * 17

From here, we clear the value of k:

k = \frac{476}{17}\\k = 28

Therefore, the relationship is:

y = 28x

For 1428 kilometers we have:

1428 = 28x

Clearing the amount of fuel we have:

x = \frac{1428}{28}\\x = 51

Answer:

51 liters of fuel are required for the vehicle to travel 1,428 kilometers

3 0
3 years ago
AB has one endpoint located at A(-2,
Maru [420]
The other endpoint would be (4,1)
8 0
3 years ago
Find the value of x. Then find the missing angle measures of the polygon.
Naily [24]

The sum of the angles equals 540

There are 3 angles that measure (x - 30) and 2 angles that measure (x)

3(x - 30) + 2(x) = 540

3x - 90 + 2x = 540

5x - 90 = 540

5x = 630

x = 126

x - 30   = 126 - 30   = 96

Answer: x = 126,  x-30 = 96

8 0
4 years ago
Emika has a monthly budget for her cell phone bill.
meriva

Emika's monthly budget is $60.

A percentage can be described as the fraction of a number multiplied by 100. The sign used to represent percentages is %.

Let Emika's cell phone bill budget be represented with x.

In order to determine his monthly budget, divide $60 by 120%

x = $60 / 120%

x = $60 / 1.20

x = $50

To learn more about percentages, please check: brainly.com/question/25764815

3 0
3 years ago
What is the degree of the polynomial below?<br>2х^2 + 3x +1​
Tatiana [17]

Answer:

the degree for the polynomial is 2

4 0
4 years ago
Other questions:
  • Gregory knows that ABC is reflected onto ABC which statement about the figure is true
    14·1 answer
  • How many numbers are there between 1 and 1000 that dont include the digit 9
    12·1 answer
  • Tickets for the theater are $5 for the balcony and $10 for the orchestra. If 600 tickets were sold and the total receipts were $
    11·1 answer
  • Answer for 100 POINTS! Marking every correct answer brainiest. Use the picture below.
    12·1 answer
  • How do you write seven hundred twelve thousandths in standard and expanded form
    14·2 answers
  • Im in no rush just need help
    10·1 answer
  • Please help im giving 10 points and brainliest
    11·2 answers
  • Can somebody please help me, will give brainliest
    5·1 answer
  • Graph the dilation of the image of the triangle using a scale factor of 1/3. Use the polygon tool to graph your dilated triangle
    9·1 answer
  • Round 19 to the nearest ten ( I'm running out of points)​
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!