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
andreyandreev [35.5K]
3 years ago
9

Find the solution of this system of equations - 2x + 10y = -22 -2x - 4y = 6

Mathematics
1 answer:
LenaWriter [7]3 years ago
3 0

Answer:

x = 1, y = -2

Step-by-step explanation:

- 2x + 10y = -22 _______(1)

-2x - 4y = 6 _______(2)

From (1),

10y + 22 = 2x

x = (10y + 22) / 2

x = 5y + 11 .______(3)

Substitute (3) into (2),

-2 ( 5y + 11) -4y = 6

-10y - 22 - 4y = 6

-14y = 6 + 22

-14y = 28

y = 28/ -14

y =-2

Substitute y = -2 into (3).

x = 5y + 11

x = 5(-2) + 11

x = -10 + 11

x = 1

Therefore, the solution is x = 1, y = -2.

You might be interested in
Express (81^1/4)^3<br> in simplest radical form.
agasfer [191]
Your answer in simplest radical form would be 531441/64
4 0
2 years ago
Jane and Lee had dinner at The Palace The bill totaled $20 30 with tax The service
kirza4 [7]

Answer:

$3.45

Step-by-step explanation:

$20.30 / 10  = $2.30 = 10%

$2.30 / 2  = $1.15 = 5%

$2.30 + $1.15 = $3.45 = 15%

3 0
3 years ago
The following table shows the data collected from a random sample of 100 middle school students on the number of hours they play
kompoz [17]
84o students would be expected to play outdoor games for at least three hours every week. 

The sample showed that 70% students played outdoor games for at least three hours every week. 70% of 1,200 is 840.
3 0
3 years ago
Does anyone know any 7th grade math? cus i really need help with this.
sladkih [1.3K]

Answer:

B

Step-by-step explanation:

All we have to do is plug in the values! 1/2(4)(10+5) will give us the area. Now we simplify!

2(15) = A

30=A

Our answer is B!

8 0
3 years ago
3x-2x+8=12; x=4 <br>Determine if the value of x is a solution to the equation<br>​
VARVARA [1.3K]

Step-by-step explanation:

3x - 2x + 8 = 12; x=4

Now, Evaluate the value of x

3(4) - 2(4) + 8 = 12

12 - 8 + 8 = 12

12 + 0 = 12

12 = 12

4 0
2 years ago
Other questions:
  • Need help on attached problem
    6·1 answer
  • What is the answer to 5a-2a+9
    8·1 answer
  • What is the probability of rolling a 6 sided die and getting a 2 or an odd number?
    10·2 answers
  • Jacks mother gave him 50 chocolates to give to his friends at his birthday party. He gave 3 chocolates to each of his friends an
    10·2 answers
  • Can someone do all of those PLEASE , and show your work ! Will definitely mark as brainlest !!
    7·1 answer
  • Find the fifth term in the geometric sequence for a1=2 and r=3
    15·1 answer
  • Brainly to whomever somehow solves for x. I WILL REPORT SCAMS AND UNHELPFUL "WHAT?" ANSWERS.
    7·2 answers
  • What is the slope of a line perpendicular to the line whose equation is 12x-9y=135
    10·1 answer
  • Guided Practice
    9·1 answer
  • A rational number
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!