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
dedylja [7]
3 years ago
12

Solve each system by substitution 5.) y= -3x x + y =4

Mathematics
1 answer:
soldier1979 [14.2K]3 years ago
4 0

Answer:

x = -2

y = 6

Step-by-step explanation:

y= -3x

x + y =4

Substitute y = -3x from the first equation into the second equation

x + (-3x) = 4

Combine like terms

-2x = 4

Divide by -2

-2x/-2 = 4/-2

x = -2

Now find y

y = -3x

y = -3(-2)

y = 6

You might be interested in
Can someone help me please
lukranit [14]

Answer:

with what?

Step-by-step explanation:

theres no question

3 0
3 years ago
The question is below (Giving Brainliest)
WITCHER [35]

Answer:

Hiya there!

Step-by-step explanation:

I'm pretty sure that its 80.

3 0
3 years ago
Read 2 more answers
PLZ HELP ASAP!!
Triss [41]
<span>prove: the segment joining the midpoints of the two sides of a triangle is parallel to the third side. the coordinates are A(0,0)B(a,0)on the the x axis, and C(c,d), M</span>
8 0
3 years ago
Read 2 more answers
6th grade math ! help me please :)
malfutka [58]
1. N + 2; n = 6: the answer is 8 because n=6 so we sub n with that... and we get 6+2 and that’s 8.

2.5f; where f=4: the answer is 20 because when a variable is directly next to a number it is multiplied by that number so we will replace f with 4 and our equation is now 5(4) or 5•4 and both are equivalent to 20.

3. 7b-2; where b=5: the answer is 33 because 7 multiplied by 5(b) minus 2= 7(5)-2 or 7•5-2= 33 because you will multiply 7 by 5 and get 33 then you will subtract by 2 and get 33.

Hope this helps!!!
7 0
3 years ago
Write an equation of a parabola that opens to the left, has a vertex at the origin, and a focus at (–4, 0).
8_murik_8 [283]

Answer:

y^{2}=-16x

Step-by-step explanation:

we know that

The standard equation of a horizontal parabola is equal to  

(y-k)^{2}=4p(x-h)

where

(h,k) is the vertex

(h+p,k) is the focus

In this problem we have

(h,k)=(0,0) ----> vertex at origin

(h+p,k)=(-4,0)

so

h+p=-4

p=-4

substitute the values

(y-0)^{2}=4(-4)(x-0)

y^{2}=-16x

8 0
3 years ago
Other questions:
  • Uno menos el cociente de uno y un número <br> x
    11·1 answer
  • 1. Solve the equation.
    5·1 answer
  • What is 5 3/5 written as a decimal
    6·1 answer
  • How does scale factor change the area?
    6·1 answer
  • Chuck says that he can draw a cylinder on his polyhedron poster because it has a pair of base that are congruent. is chuck corre
    7·1 answer
  • Please help PLEASEEEEEEEEE ​
    10·1 answer
  • Which equation represents a line parallel to the line shown on the graph?<br> O<br> •
    12·1 answer
  • Consider functions f and g.
    11·1 answer
  • ****HELP <br><br>I JUST NEED THE M&lt;1 - M&lt;4 JUSTIFICATIONS THEYRE LISTED IN THE IMAGE.
    7·1 answer
  • What is the volume of a right circular cylinder with a radius of 6 m and a height of 9 m?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!