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
zubka84 [21]
3 years ago
10

5x+4y=-14 3x+6y=6 solve the system below by the elimation​

Mathematics
1 answer:
lana66690 [7]3 years ago
8 0

Answer:

y = 4

x = -6

Step-by-step explanation:

multiply first equation by 3

3×(5x+4y)= -14 ➡ 15x + 12y = -42

multiply second equation by -5

-5×(3x+6y)= 6➡ -15x -30y = -30

now add both equations up

15x +12y -15x -30y = -42 -30 (15x will eliminate -15x)

-18y = -72

y = 4 use this to find value of x

3x + 6×4 = 6 ➡ ex = -18 ➡ x = -6

You might be interested in
Find the center and radius of the circle x2 - 22x + y2 + 20y =4
nasty-shy [4]

Answer:

Step-by-step explanation:

4

3 0
3 years ago
PLEASE HELP PLEASEEEEEEE
Kitty [74]
EF and FG are equal so EF would be 6.1
6.1+6.1=12.2
EG=12.2
5 0
2 years ago
Twice the difference of a number and 8 equals 2
bixtya [17]

Answer:

x=16

Step-by-step explanation:

2(x/8)=2

2x / 16=2

   x 16 x 16

2x=32

2x/2= 32/2

x= 16    

6 0
2 years ago
When paid flat a round parachute has a diameter of 8 meters. What is the parachute’s circumference
mariarad [96]

Answer:

25.12 meters

Step-by-step explanation:

The circumference of a circle is given by

c=2\pi r (1)

where:

\pi\sim 3.14

r is the radius of the circle

In this problem, the parachute has a diameter of 8 meters:

d = 8 m

The radius of a circle is equal to half of its diameter, so the radius of the parachute is:

r=\frac{d}{2}=\frac{8}{2}=4 m

And therefore, by applying eq.(1) we can find the circumference of the circle:

c=2\pi r=2\cdot 3.14 \cdot 4 = 25.12 m

7 0
3 years ago
Read 2 more answers
When the population mean and standard deviation are known, what distribution is used for the analysis of the sample?.
Kitty [74]

When the population mean and standard deviation are known, you use the standard normal distribution

<h3>How to determine the distribution?</h3>

There are several probability distributions; these include

  • Normal distribution
  • Poisson distribution
  • Chi square distribution
  • Binomial distribution
  • Etc

Of all these distribution, only the standard normal distribution can be used when the population mean and standard deviation are known,

Note that it is also referred to as the z-distribution

Read more about probability distributions at:

brainly.com/question/24756209

7 0
1 year ago
Other questions:
  • Four less than five times a number is equal to 11
    6·2 answers
  • 81,700÷10 to the 1st power
    7·2 answers
  • Each month Adam changes the amount of food and sunlight a potted plant receives. When he started the plant was 63 cm tall. In th
    11·2 answers
  • The population of a town increases at a rate of 5% every year. The population of this town was 10,400 in 2017. What will
    5·1 answer
  • 245% as a fraction in simplest form
    14·2 answers
  • At which values of x does the function F(x) have a vertical asymptote? Check
    9·1 answer
  • !NO FILES ! <br> Help me ASAP :((
    9·1 answer
  • Log 2x=-1<br> solve for x
    7·1 answer
  • Addison is 4 times as old as Charlie. In 22 years, Addison will be twice as old as Charlie. Which equation represents their ages
    14·1 answer
  • Please help me i dont get this i'm in 7th grade
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!