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
Solnce55 [7]
3 years ago
14

Which ordered pairs in the form (x, y) are solutions to the equation 3x – 4y = 21? Choose all answers that are correct.

Mathematics
2 answers:
EleoNora [17]3 years ago
6 0
<h2>Answer:</h2>

The ordered pair which are solution to the equation are:

    B.    (-1,-6)

    C.    (7,0)

     D.   (11,3)

<h2>Step-by-step explanation:</h2>

We are given a equation in  terms of variables x and y as follows:

            3x-4y=21

The ordered pair which are solutions to the equation are the points which when substituted to the equation satisfies the equation.

A)

(-3,3)

i.e. we put x= -3 and y=3 we get:

3\times (-3)-4\times 3=21\\\\i.e.\\\\-9-12=21\\\\i.e.\\\\-21=21

which is not possible.

Hence, (-3,3) is not a solution to the equation.

B)

(-1,-6)

we put x=-1 and y=-6 into the equation to get:

3\times -1-4\times (-6)=21\\\\i.e.\\\\-3+24=21\\\\i.e.\\\\21=21

Hence, (-1,-6) is a solution to the equation.

C)

(7,0)

we put x=7 and y=0 in the equation.

i.e.

3\times 7-4\times 0=21\\\\i.e.\\\\21-0=21\\\\i.e.\\\\21=21

Hence, (7,0) is a solution to the equation.

D)

(11,3)

we put x=11 and y=3 into the equation.

i.e.

3\times 11-4\times 3=21\\\\i.e.\\\\33-12=21\\\\i.e.\\\\21=21

Hence, (11,3) is a solution to the equation.

bekas [8.4K]3 years ago
5 0
A. (−3, 3)
<span>3x – 4y = 21
</span>3(-3) - 4(3) = 21
-21 = 21 >>>>> not equal

B. (−1, −6)
<span>3(-1) - 4(-6) = 21
</span>21 = 21 >>>>>>>>>>Equal

C. (7, 0)
<span>3(7) - 4(0) = 21
</span>21 = 21>>>>>>>>>>equal

D. (11, 3)
<span>3(11) - 4(3) = 21
</span>21 = 21 >>>>>>>>>equal
You might be interested in
A logical argument that is presented in graphical form using boxes and arrows is called a____.
aliya0001 [1]

Answer:flowchart proof

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
C is the midpoint of chord AB and D is the midpoint of arc AB.Given that AB=36 unit and CD=6 unit then What is the radius of cir
Anna71 [15]

Answer:

By power of a point, AC⋅CB=DC⋅CE. That is, 12⋅12=6⋅(2R–6).

Then, R=15.

5 0
3 years ago
Read 2 more answers
I need help with my super haaaaaaaaaard work
Flauer [41]

Answer:

What is the Question so I can answer?

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
If possible, factor 9x2 − 625y2.
Igoryamba

Answer:

(3x - 25y)(3x + 25y)

Step-by-step explanation:

9x² - 625y² ← is a difference of squares and factors in general as

a² - b² = (a - b)(a + b)

Given

9x² - 625y²

= (3x)² - (25y)²

= (3x - 25y)(3x + 25y)

3 0
3 years ago
Read 2 more answers
What is the slope-intercept equation of this line?
Gekata [30.6K]

Answer:

y = -2x+8

Step-by-step explanation:

We have 2 points so we can find the slope

m = (y2-y1)/x2-x1)

m = ( -4 -8)/(6 - 0)

    = -12/6

   = -2

The y intercept is 8 from the point (0,8)

The slope intercept form is

y = mx+b where m is the slope and b is the y intercept

y = -2x+8

7 0
3 years ago
Other questions:
  • Help me please its not d because it was wrong
    9·2 answers
  • In Paris, the sculpture Long-Term, created by Armand Fernandez, contains 60 cars embedded in 3.5 million pounds of concrete. How
    14·1 answer
  • Can a variable be a constant
    11·2 answers
  • For a school project, Alice surveyed several male students in her class to determine whether there is a relationship between the
    8·1 answer
  • I give crown pls don't put a random answer :-((
    9·2 answers
  • What is the area of a triangle whose base measures 3.2 centimeters and whose height is 4.6 centimeters.
    11·1 answer
  • Solve the system of equations 4x<br> equations.<br> 8y = -8 and 5x-9y = -7 by combining the
    11·1 answer
  • PLEASE HELP !! ILL GIVE BRAINLIEST !!
    15·2 answers
  • What is the factor of the expression -30-21x
    8·2 answers
  • Harry Potter has a large amount of money in his vault at Gringotts. He wants to use some of it to buy his friends new broomstick
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!