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
adoni [48]
2 years ago
5

Answer please i will give brainliest

Mathematics
1 answer:
il63 [147K]2 years ago
7 0

Step-by-step explanation:

a.

simply add both equations

x + y = 2

-3x - y = 5

----------------

-2x + 0 = 7

x = -7/2

x + y = 2

-7/2 + y = 2

y = 2 + 7/2 = 4/2 + 7/2 = 11/2

b.

1/2 x + 2y = -13

x - 4y = 8

first multiply the first equating by 2

x + 4y = -26

x - 4y = 8

--------------------

2x + 0 = -18

x = -18/2 = -9

x - 4y = 8

-9 - 4y = 8

-4y = 17

y = -17/4

You might be interested in
What is the image of the point (-5,-9) after a rotation of 90 degrees counterclockwise about the origin
k0ka [10]

Answer:(9,-5)

Step-by-step explanation: trust me

7 0
2 years ago
Does anyone know this? its for a test , please ?!
konstantin123 [22]

Answer:

11) Irrational number

12) Integer

13) Communitive property of addition

14) Distributive property of addition and multipacation

15) 26

16) 8

17) -41

18) 65

19) -5x-20

Step-by-step explanation:

Hope I helped

4 0
3 years ago
The dimensions of a lawn shaped like a trapezoid are given in meters. 4m,5m,12m,18m. What is the area of the lawn in square mete
xeze [42]

Some tell me plzzzzzzzzzzxzzzzzzzzz

4 0
3 years ago
A number is 120 less than 965. Find the number.​
Lady bird [3.3K]

Answer:

845

Step-by-step explanation:

I think that's what it's asking??

3 0
2 years ago
Read 2 more answers
Trapezoid ABCD is shown below.
notka56 [123]

Answer:

A III only

Step-by-step explanation:

Because it's the answer and also when you do 3 x 3 and divide it by 3 you will get 3 that's why it's A.) III only

7 0
2 years ago
Other questions:
  • What is the solution for 3b + 17 less than or equal to 4b + 23 + 2b
    10·1 answer
  • A number w added to 2.3 is more than 18
    14·1 answer
  • Number 18 please help
    13·1 answer
  • Mrs William has a prized box with different colored tickets. Each ticket results in different type of prize.
    12·1 answer
  • Anybody know the answer I need help. Please
    11·1 answer
  • Angle 1 and Angle 2 are complimentary angles. Find x and the measure of Angle 1.
    12·2 answers
  • I WILL GIVE BRAINLIEST! Which table of values corresponds to the graph below?
    12·2 answers
  • If sales tax is 6%, how much tax would you pay on an item that normally costs $20 but is on sale for 15% off the original price?
    14·1 answer
  • Please help me<br>9=146+x\95<br>X=?​
    14·1 answer
  • HELP ME ASAP HELP ME ASAP HELP ME ASAP
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!