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
g100num [7]
3 years ago
13

Solve this system of equations. {3x+4y=36y=−12x+8

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
3 0

Step-by-step explanation:

(1 point)

No, there isn't a more efficient way to solve this system.

Yes, a more efficient way is to multiply the first equation by 4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate y, then solve for x.

Yes, a more efficient way is to multiply the first equation by −4, add to eliminate x, then solve for y.

You might be interested in
Can someone explain the steps for how do solve this?! I can’t get it right
Ulleksa [173]

Answer:

x = 50

m∠D = 150°

m∠F = 30°

Step-by-step explanation:

  • supplementary angles are two angles whose sum is 180°

∠D + ∠F = 180°

3x + x - 20 = 180

3x + x = 180 + 20

4x = 200

x = 200/4

x = 50

D = 3*50 = 150

∠D = 150°

F = 50 - 20 = 30

∠F = 30°

6 0
3 years ago
I need to answer and explain
nignag [31]

Answer:

parallel

Step-by-step explanation:

Solve both equations for y to make it easier to compare them.

2x - 5y = 0 ↔ 5y = 2x, or y = (5/2)x.

y = (5/2)x - 3

Since the slopes are the same, the two lines are parallel.

8 0
2 years ago
Kevin buys a car. His car payment is $248 per month.After 55 payments how much was Kevin paying?
NNADVOKAT [17]

Answer:

hes paid 13,640

Step-by-step explanation:

5 0
3 years ago
El año pasado, la familia de Kate ahorró 2,573 monedas de 1¢. La familia de Zoe ahorró el triple de esa cantidad. ¿Cuántas moned
IRISSAK [1]

Answer:

brueh what im confused

Step-by-step explanation:

4 0
3 years ago
BRAINLIESTTT ASAP!! PLEASE HELP ME :)
Lostsunrise [7]

Answer:

See below  

Step-by-step explanation:

(a) Field lines

A negatively charged particle has an electric field associated with it.

The field lines spread out radially from the centre of the point. They are represented by arrows pointing in the direction that a positive charge would move if it were in the field.

Opposite charges attract, so the field lines point toward the centre of the particle.

For an isolated negative particle, the field lines would look like those in Figure 1 below.

If two negative charges are near each other, as in Figure 2, the field lines still point to the centre of charge.

A positive charge approaching from the left is attracted to both charges, but it moves to the closer particle on the left.

We can make a similar statement about appositive charge approaching from the left.

Thus, there are few field lines in the region between the two particles.

(b) Coulomb's Law

The formula for Coulomb's law is

F = (kq₁q₂)/r²

It shows that the force varies inversely as the square of the distance between the charges.

Thus, the force between the charges decreases rapidly as they move further apart.

5 0
3 years ago
Other questions:
  • In the function y=5x^2-2, what effect does the number 5 have on the graph, as compared to the graph of y=x^2?
    10·2 answers
  • How many inches are in 10 feet
    12·1 answer
  • The probability that a person in a certain town has brown eyes is 2 out of 5. A survey of 450 people from that same town was tak
    9·2 answers
  • Which of these equations, when solved, gives a different value of x than the other three? 9.1 = -0.2x + 10 10 = 9.1 + 0.2x 10 –
    10·2 answers
  • Okay so i really need help anyways soon as possible!
    9·2 answers
  • Write 0.16 as a percentage
    13·2 answers
  • Brian and Emily are testing different paper airplane designs to see which will allow a plane to go the farthest. Emily folds her
    11·1 answer
  • Richard and teo have combined age of 36 Richard is 9 years older than twice
    15·1 answer
  • Perform the operation.<br> (-10x² + 9) + (8x2 – 5x + 7)<br> HELP ASAP PLS
    8·1 answer
  • The standard normal curve shown here is a probability density curve for a continuous random variable. This means that the area u
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!