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
matrenka [14]
3 years ago
9

I’m supposed to solve this by eliminating the x variable

Mathematics
1 answer:
liberstina [14]3 years ago
3 0

Answer:

the answer is (-4, 5)

Step-by-step explanation:

Let's use elimination by addition / subtraction:

-6x - 2y =  14

6x + 7y = 11

-------------------

        5y   = 25, so y = 5.

Substituting 5 for y in the 2nd equation, we get:

6x + 7(5) = 11, or:

6x + 35 = 11, or

6x = -24, or x = -4.

Thus, the answer is (-4, 5).  Please double check to ensure you have copied down both system of equations and answer correctly.

Check:  Is (-4, 5) a solution to this system?

Subst. -4 for x and 5 for y in the first equation:

            -3(-4) - (5) = 7

               12 - 5 = 7  YES

You might be interested in
Tyrell read 72 pages in 2 hours. At this rate, how many hours will it take him to read 285 pages?
juin [17]
It will take Tyrell about 4 hours.
4 0
3 years ago
The image below shows where coal deposits are found in the United States. Explain how these coal deposits are energy sinks and c
Rudik [331]

Answer:

It is a little bit trivial:

As we know:

Energy sink: is anything that uses energy.

Energy source: is anything that produces energy.

How the caol deposits can be energy sinks? well, you want to extract the coal from those deposits, and to do it, you need to "use energy" (the type of energy can depend on the extraction method, for example, if you use a pickaxe to extract the coal, you are using mechanical energy)

These coals are potential energy sources because coal is an energy source, potential means that, given some circumstances, something can transform into other things.

So potential energy source in this situation means that those coal deposits can be potential energy when we extract the coal and use it as an energy source.

3 0
3 years ago
Which accurately describes a circle with a radius 12 centimeters and center Q?
JulijaS [17]

Answer:

the answer is d!

Step-by-step explanation:

because the radius is measuring the distance from any point on the circle to the very center of the circle

5 0
3 years ago
Hey guys i need your help what is 89 dividedby 2,908
Ivan

Answer:

The answer is 32.6741573034

Step-by-step explanation:

8 0
4 years ago
Read 2 more answers
In slope-intercept form, write the equation of the line that passes through points (-7, 8) and (2, -2).
Ymorist [56]

Answer:

y = -1x + 0.5

Step-by-step explanation:

First, I plotted the points (-7, 8) and (2, -2). Then, I drew a line connecting the two points. At the point (-7, 8), I went down 2 squares and to the right 2. This would give me a slope of -1. Since the line touches the y-axis at 0.5, this is the y-intercept.

I am not sure about the y-intercept of this equation. If I got this wrong, I am sorry and please let me know. Thank you!

3 0
3 years ago
Read 2 more answers
Other questions:
  • Your swim team competes in the 200-meter freestyle relay. The individual times for the four team members are 27.81, 26.89, 26.55
    14·1 answer
  • Solve sin4x cosx-sinx cos4x = sqrt(2)/2 for [0, 2pi)
    6·1 answer
  • A certain human red blood cell has a diameter of 0.000007 meters.Write an expression that represents this diameter, in meters in
    10·1 answer
  • Find x. Assume that segments that appear tangent are tangent.
    8·1 answer
  • What is the height h of the parallelogram
    5·1 answer
  • What is the relation between the trigonometric ratios tan(R) and tan(J)? Please answer ASAP!
    14·1 answer
  • the list shows how much yarn mary has= 1/3 red yarn, 2/9 white yarn, 2/6 blue yarn what is the total amount of yarn mary has?
    8·1 answer
  • The clownfish Kay wanted to buy for $12 last week has been marked up 8%. What is the new price of the fish?
    15·1 answer
  • A quarter has a diameter of 2.4. if it makes 8 rotations how far did it roll
    10·2 answers
  • Find the value of x. Round your answer to the nearest tenth<br> (Will give brainiest)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!