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
lesya [120]
3 years ago
12

Which ordered pair is a solution to the system of equations?

Mathematics
1 answer:
iren2701 [21]3 years ago
3 0

(- 2, - 3) is a solution to the given system of equations.

Answer: Option D

<u>Step-by-step explanation:</u>

Given equation are not presented in proper format. So, let assume the given system of are as below,

         2 x - y = -1

         2 x -4 y = 8

Now, subtract the second equation from the first, we get

          (2 x - y) -(2 x - 4 y) = -1 -8

          3 y = -9  

           y = -3 (obtained this when divide by 3)

Substituting y = - 3 into the first equation, we get

          2 x - (-3) = - 1

          2 x = - 1 + 3

          x = - 2 (obtained when divide by 2)

Now, the answer is (x, y) = (- 2, - 3)

You might be interested in
During the 2019 professional baseball season, four players scored a total of 132 home runs.
forsale [732]

Answer: It’s b - 33 home runs

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Math problem plz help me ​
notsponge [240]
I believe the answer is B
3 0
3 years ago
Read 2 more answers
The vector ~v represents the displacement vector from Portland, Oregon to Houston, Texas. The vector w~ represents the displacem
Art [367]

Answer:

a

the displacement of the plane is  - \= w

b

The displacement of plane  from Portland to Akron with layover at Houston is  

       \= v  + \= w

c

  the vector which defines this displacement is  \= v + \= w  =- 2500 \ km

Step-by-step explanation:

From the question we are the

   The displacement from Portland, Oregon to Houston, Texas. is  \= v

    The displacement  from Houston, Texas to Akron, Ohio.  is \= wa

a

   The motion of the plane in question a is in the opposite direction to vector \= w

So the displacement of the plane is  - \= w

b

The motion of Portland to Houston to Akron is in the direction of both vector \= v and  \= w  so

The displacement of plane  from Portland to Akron with layover at Houston is  

       d =  \= v  + \= w

c

From the question we are told that the plane flies over Portland to get to  Anchorage, Alaska which implies that it is moving in opposite direction to the vector \= v

   Give that distance from Portland to Houston is  \= v  = 3000 km

           and the distance from Portland to  Anchorage is \= w = - 5500km

Then the vector which defines this displacement is mathematically represented as

   \= v + \= w  = 3000  -5500

    \= v + \= w  =- 2500 \ km

       

4 0
3 years ago
What is the answer of the problem; <br> 3x-4+2(x-5)=9x+8-2x
alexgriva [62]

Answer:

The answer to the given problem 3x-4+2(x-5)=9x+8-2x is x=-11

Step-by-step explanation:

Given problem is 3x-4+2(x-5)=9x+8-2x

To solve the equation:

3x-4+2(x-5)=9x+8-2x

3x-4+2x-10=9x+8-2x  (multiplying the term with factor)

5x-4-10=7x+8  (adding the like terms)

5x-14=7x+8  (adding the like terms)

Now taking the terms to one side

5x-14-7x-8=0

-2x-22=0 (adding the like terms)

-2x=22

-x=\frac{22}{2}

-x=11

x=-11

Therefore x=-11

The answer to the given problem 3x-4+2(x-5)=9x+8-2x is x=-11

5 0
3 years ago
Write this trinomial in factored from 6a^2-17a+7
timama [110]

Answer:

(3a-7) (2a-1) is the answer

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • WHY DOES SOLVING RADICAL EQUATIONS NEED A DIFFERENT PROCESS? HOW DO EXTRANEOUS SOLUTIONS ARISE FROM RADICAL EQUATIONS?
    14·1 answer
  • Which problem is being modeled on the number line?
    6·1 answer
  • Simplify the ratio 15/18
    11·1 answer
  • Determine the product of 1,8,5,12
    15·2 answers
  • A basketball has a diameter of approximately 9.5 inches . What is the volume of the basketball? Use 3.14 for pi
    13·2 answers
  • Determine which is the better buy. 7.38 for 2 pounds and 9.57 for 3 pounds.
    9·2 answers
  • while hiking on the grand canyon you realize your elevation is 2,400 ft. Is this elevation below sea level?
    13·1 answer
  • Determine whether quantities vary directly or inversely and find the constant of variation. 16 factory workers made 40 pieces in
    9·1 answer
  • Janie ordered boxed lunches for a student advisory committee meeting. Each lunch costs $4. The total cost of the lunches is $47,
    9·2 answers
  • Pls help me with this
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!