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
erma4kov [3.2K]
3 years ago
13

Solve the following system of equations by linear combination:

Mathematics
1 answer:
mel-nik [20]3 years ago
5 0

Answer:

The solution is (4, 1).

Step-by-step explanation:

For the first multiply the second equation by -1 then add them together.  

4x + y = 5  

-1( 3x + y = 3)  

4x + y = 5  

-3x - y = -3  

x=2  

Plug that in and you get -3 for y  

Answer is (2,-3)  

For the second, just add them  

2d – e = 7  

d + e = 5  

3d=12  

d=4  

Plug that into either equation and e is 1  

The solution is (4, 1).

You might be interested in
28 lunch; 15 % tip<br><br><br> I need to show my workkkk
NeX [460]
28 x .15 = 4.2

28 + 4.2 = 32.2 <---- ANSWER

Hope this helps :)
5 0
4 years ago
Read 2 more answers
Which sentences in the passage are true concerning a function?
Allisa [31]

Answer:

A function is a predefined formula that performs calculations using specific values in a particular order. All spreadsheet programs include common functions that can be used for quickly finding the sum, average, count, maximum value, and minimum value for a range of cells.

Step-by-step explanation:

3 0
3 years ago
Can someone plzz help me with this 86points
just olya [345]

Answer:I would do the same thing which is copy and paste because its very

difficult to find out how to do it but ill keep trying

Step-by-step explanation:

7 0
3 years ago
PLEASE DROP A CORRECT ANSWER!!
denpristay [2]

Answer:

C

Step-by-step explanation:

you keep the base the same which is 7 . Then add the exponets (small numbers) then you will get 11. Therefore, you put the base 7 over 11.

5 0
3 years ago
Find m∠ABD and m∠CBD given m∠ABC = 111∘.
sineoko [7]

Answer:

m∠ABD = 88º

m∠CBD = 23º

Step-by-step explanation:

(-10x + 58) + (6x + 41) = 111

Combine like terms

-4x + 99 = 111

Subtract 99 from both sides

-4x = 12

Divide both sides by -4

x = -3

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

m∠ABD = -10x + 58

m∠ABD = -10(-3) + 58

m∠ABD =  = 30 + 58

m∠ABD = 88º

m∠CBD = 6x + 41

m∠CBD = 6(-3) + 41

m∠CBD = -18 + 41

m∠CBD = 23º

7 0
3 years ago
Read 2 more answers
Other questions:
  • if you double the input of a function and it results in twice the output and if you triple the input and it result in three time
    14·2 answers
  • Mary logged into work at 8:10 am and logged out at 3:45 pm. How many hours did she work? (Her employer rounds to the nearest qua
    14·2 answers
  • How many times greater is the product 4x300 than the product 4x30?
    5·2 answers
  • A swimming pool is 12 metres long. how many metres would you swim if you swam 8 lengths. ​
    8·2 answers
  • List all the factors of 90 from least to greatest
    9·2 answers
  • Consider the functions f(x)=x−7 and g(x)=4x3. What is f(x)+g(x)?
    8·2 answers
  • Please help and no links please
    5·1 answer
  • Please help me. ill give give u €17.
    11·1 answer
  • What does x = ? Please help meee
    13·2 answers
  • Which rule explains why these triangles are congruent?​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!