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
love history [14]
3 years ago
15

Solve each system using the elimination method 2x + y = 3 -2x + 5y = -9

Mathematics
1 answer:
DaniilM [7]3 years ago
7 0
The 2X and negative 2X cancel out. Then you add the 3 to the -9 to get -6 they you add the lonely Y to the 5Y so now you have 6Y=-6. Then you divide them both by 6 to get the Y alone. 6Y = 6
— —
6 6

So then it’s Y=1. There you go. Hope I helped!!!
You might be interested in
Ax-bx+y=z solve for x​
Eddi Din [679]

ax - bx + y = z \\ \Leftrightarrow x(a - b) =  - y + z \\ \Leftrightarrow x =  -  \frac{y - z}{a - b}

3 0
4 years ago
What is the inverse of the function f(x) =1/4 x – 12?
forsale [732]
F=x-48 over 4x. I hope that is right :)
8 0
3 years ago
Read 2 more answers
Mr. And Mrs. Doran have a genetic history such that the probability that a child being born to them with a certain trait is 0.14
poizon [28]

Answer:

0.938

Step-by-step explanation:

From the question :

p = 0.14

Number of children, n = 7

P(x ≤ 2) = P(2) + P(1) + P(0)

Using binomial probability :

P(x =x) = nCx  * p^x * (1 - p)^(n - x)

We could also use the binomial probability calculator :

P(x ≤ 2) = 0.3479 + 0.3965 + 0.1936

P(x ≤ 2) = 0.938

8 0
3 years ago
Find the interior angles of a regular polygon which has 6, 10 and 20 sides​
andrew-mc [135]

Answer:

(6)=120°

(10)=72°

(20)=36°

Step-by-step explanation:

(n-2)×180°

(6-2)×180°=720°

6÷720°=120°

10÷720°=72°

20÷720°=36°

4 0
3 years ago
Find the midpoint of the line segment joining the points. (6, -5), (6, 3)
adoni [48]

Answer:

The mid point is (6,-1)

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Other questions:
  • If a/b=p/q, then a + b/b = p + b/q.<br> True<br> False
    12·1 answer
  • Determine which of the lines, if any, are parallel. Explain.
    7·1 answer
  • Find the missing side length in the attached image.
    7·1 answer
  • What is the sum of−1/3−(−1/2)
    5·1 answer
  • Jake stopped at a lumber yard to check on a job. The manager had him using a measuring tape to mark a board to be cut into piece
    5·2 answers
  • The ratio of men to women in a certain factory is 3 to 4. There are 216 men. How many workers are there ?
    8·1 answer
  • I need help fast!! Ill give brainliest.
    11·1 answer
  • Please help me on this and thank you!
    10·1 answer
  • Camilla thinks that -5 is less than -7 because 5 is smaller than 7.explain why Camilla is correct
    10·1 answer
  • 3x9+7 use pemdas right answers only​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!