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
Lunna [17]
3 years ago
9

. Which ordered pairs in the form (x, y) are solutions to the equation 7x – 5y = 28?

Mathematics
2 answers:
Brut [27]3 years ago
8 0

we know that

If a ordered pair (x,y) is a solution of the equation, then the ordered pair must satisfy the equation

we have the equation

7x-5y=28

Let's verify all the cases to determine the solution to the problem.

<u>case A)</u> point (-6,-14)

Substitute the values of x and y in the equation

x=-6\\y=-14

7(-6)-5(-14)=28

-42+70=28

28=28 -------> is  true

therefore

The point  (-6,-14) is a solution of the equation

<u>case B)</u> point (-1,-7)

Substitute the values of x and y in the equation

x=-1\\y=-7

7(-1)-5(-7)=28

-7+35=28

28=28 -------> is  true

therefore

The point  (-1,-7) is  a solution of the equation

<u>case C)</u> point (4,10)

Substitute the values of x and y in the equation

x=4\\y=10

7(4)-5(10)=28

28-50=28

-22=28 -------> is not true

therefore

The point (4,10) is not a solution of the equation

<u>case D)</u> point (7,9)

Substitute the values of x and y in the equation

x=7\\y=9

7(7)-5(9)=28

49-45=28

4=28 -------> is not true

therefore

The point  (7,9) is not a solution of the equation

therefore

<u>the answer is </u>

(-6,-14)

(-1,-7)

svet-max [94.6K]3 years ago
6 0

Answer:

It is  the answer is  (-6, -14) and also (-1,-7) so it is A and B

Step-by-step explanation:

I did the test.

You might be interested in
A trader purchased an article for 250 naira. At what price must he sell to make a profit of 20%?​
Misha Larkins [42]

Answer:

300

Step-by-step explanation:

10% of 250 is 25. so 20% is 50

250 + 50 = 300

3 0
3 years ago
What is the answer for this equation 600 is 4/9 of what number 
horrorfan [7]

Answer:

933.3333333

Step-by-step explanation:

6 0
2 years ago
What is the slope of the line passing through (-2, 4) and (3,-4) ​
mariarad [96]
hold on i will send in the comments i’m working on it rn
5 0
2 years ago
What is the slope of the line that passes through the pair of points?
Mazyrski [523]
I think the answer is going to be a
4 0
3 years ago
Read 2 more answers
5/8 + 3/4 -2/3 - 5\6​
Iteru [2.4K]

Answer:

5/8+3/4-2/3-5/6

= ( 5/8 + 3/4 ) - ( 2/3 + 3/4)

= ( 11/8) - (17 /12)

= 11/8 - 17/12

= 33-34 /24

= -1/24 (ans)

Hope it helps

5 0
3 years ago
Other questions:
  • 1 table cost $50 more than a chair.Both women had the same amount of money at first.how much did a table cost?
    7·1 answer
  • This too? thank you so much
    15·2 answers
  • Enter the solution to the equation in the box. 12(x−3)=−14(x−6) x =
    11·1 answer
  • Solve the proportion 15t/5=(2t+3)/6.
    6·1 answer
  • 2) Paul has two and two-thirds pounds of peanuts and a quarter of a pound of cashews . How many more pounds of cashews does he h
    11·1 answer
  • Expand (5a/3 -2b/5)^3
    13·2 answers
  • NEED IT ASAP What is the value of x in the diagram below? A.18/ ROOT 3 B.18 ROOT 2/ROOT 3 C.18 ROOT 3/ ROOT 2 D. 18 ROOT 2
    7·1 answer
  • If f(x) = 6(9)^x then f(1/2) =?
    9·1 answer
  • lissa has $75 worth of bird seed, which she will put into small bags. She will sell each bag for $7. What is the greatest number
    12·1 answer
  • What is the missing number. Explain how you determined your answer. <br><br> 5–8–14–26–50–?—194
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!