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
mamaluj [8]
2 years ago
13

PLEASE I NEED HELP QUICKLY!!! Find the solution for the given system of equations in the form (x,y).

Mathematics
2 answers:
adelina 88 [10]2 years ago
4 0

Solution:

<u>Note that:</u>

  • Given equations: -x + y = 8 and 7x + 3y = -16

<u>Solving the system of equations to find the value of x and y:</u>

  • 7(-x + y = 8)

        7x + 3y = -16

  • -7x + 7y = 56

        7x + 3y = -16

  • 10y = 40
  • => y = 40/10 = 4

<u>Substituting the value of y into any equation to find the value of x:</u>

  • 7x + 3y = -16
  • => 7x + 3(4) = -16
  • => 7x + 12 = -16
  • => 7x = -16 - 12
  • => 7x = -28
  • => x = -28/7 = -4

<u>Putting the values in the form (x,y):</u>

  • (x,y) ⇒ (x = -4,y = 4) ⇒ (-4,4)

Correct option is D.

goblinko [34]2 years ago
3 0

Answer:

  • (4, - 4)

Step-by-step explanation:

<u>Given system:</u>

  • -x + y = 8
  • 7x + 3y = - 16

<u>Multiply the first equation by 7 and add up the equations:</u>

  • -7x + 7y + 7x + 3y = 7*8 - 16
  • 10y = 40
  • y = 4

<u>Find y:</u>

  • -x + 4 = 8
  • -x = 4
  • x = - 4
You might be interested in
Interpret the interquartile range. Choose the correct answer below.
Zepler [3.9K]

The value 257.3 denotes the range of the middle 50% of all observations in the distribution.

Q1 = 271.8 ; Q2 = 387.9 ; Q3 = 529.1

The Interquartile range is the difference between the the upper quartile and Lower quartile ;

  • IQR = Q3 - Q1

  • IQR = 529.1 - 271.8 = 257.3

The value of Q3 depict the 75th percentile of the data

The value of Q1 depicts the 25th percentile of the data

The difference between (Q3 and Q1) ; is the (75th - 25th) = middle 50th percentile of the distribution.

Since the difference between the maximum and minimum value is the range, then 257.3 is the range of the middle 50% of all observations in the distribution.

Learn more :brainly.com/question/24582786

5 0
2 years ago
What is 3/10 out of 40
ELEN [110]
3/10 out of  40

= 3/10 * 40

= 3 * 4

= 12
5 0
4 years ago
Tell whether the angles are adjacent or vertical. Then find x
ki77a [65]

The Angles are adjacent and since they are both on a straight line it means that the sum of the angle is 180 degrees, so we get the equations:

     (6x) + (x - 2)=180\\7x = 182\\x=26

So x = 26.

Hope that helps!

     

6 0
2 years ago
You and two friends visit a pizza shop. There are 15 toppings. 5 toppings are meat and the rest are vegetable. Each of you order
kozerog [31]
Its a 2.2 chance that your group orders meat toppings because the chances of probability get lower as each person chooses and multiplying all three probabilities you get 2.2
3 0
3 years ago
Read 2 more answers
What is the missing step in the proof?
Cloud [144]
I think is a because if you see and do it you could see
8 0
3 years ago
Other questions:
  • A flower shop sold 3.5 times as many roses as lilies last week. Drag roses to represent the number of roses sold for every 2 lil
    15·2 answers
  • What is the y-intercept of the quadratic y=-2x^2-4x-5 ?<br> (-5,0)<br> (0,-2)<br> (-1,3)<br> (0,-5)
    14·1 answer
  • Anyone know the answer?
    11·1 answer
  • 11 3/4-7 1/4 evaluate answer need asap
    7·1 answer
  • Find the product of 2x4(3x2 + 4x + 1).
    8·2 answers
  • Find the surface area of the prism.
    8·1 answer
  • Line that is parallel y=-1.25x+7
    13·1 answer
  • Please help Time limit
    9·1 answer
  • Please Answer this question I really need help
    9·2 answers
  • Please help me and explain the ones that are circled
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!