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
Svetradugi [14.3K]
2 years ago
12

Solve the system of equations x + y = 4 and -9x + 7y = -84 by combining the equations.

Mathematics
1 answer:
Yanka [14]2 years ago
6 0

Answer:

x = 7

y = -3

Step-by-step explanation:

x + y = 4                 (Multiply this by 9)

-9x + 7y = -84

9x + 9y = 36

-9x + 7y = -84

16y = -48

y = -3

x + y = 4  

x - 3 = 4

x = 7

You might be interested in
Which data set COULD NOT be represented by the histogram shown?
Murrr4er [49]

Answer:

PLEASE SOMEONE ANSWER THIS, PLEASE!!!!!!!!!!!!

Step-by-step explanation:

7 0
3 years ago
Find the roots of the quadratic equation x² – 8x = 9 by completing the square. Show your work.
Artist 52 [7]
No solutions beacause you have to factor out numbers for -9 but they must equal -8 when adding them.
8 0
3 years ago
please Order least to greatest -2 3/10, -2 2/5, -2 -2 1/2, -3 And yes those are negative signs
rewona [7]
-3; -2 3/10; -2 2/5; -2 1/2

Your welcome!
5 0
3 years ago
Read 2 more answers
Can someone help me do this
djyliett [7]

Answer:

See below

Step-by-step explanation:

It's hard to see your photo but if that say m∠T than your answer would be

m∠ L.

The drawings are saying the the triangles are congruent which means all the interior angles of one triangle are congruent to the angles of the second triangle.    m∠M = m∠J,   m∠K = m∠E and m∠L = m∠T

Since you have two of the angles, you can also determine what m∠L and m∠T is equal to.  The sum on all interior angles must be 180 degrees.

180 - 86 - 32 = 62

7 0
2 years ago
Read 2 more answers
Helppppppppp <br> Can I get some help please
eimsori [14]

Answer:

6

Step-by-step explanation:

6/1=48/8

48/8÷3/8=6

8 0
2 years ago
Other questions:
  • Two step question. first is an equation 2nd is the answer
    5·1 answer
  • What is the next number in the sequence?<br><br> 2, -1.25, -4.5, -7.75, ...
    13·1 answer
  • Round 73.31 to the nearest tenth
    9·1 answer
  • How can x-2/3=5/6 be solved for x in one step
    5·1 answer
  • 12. Jessie drove 30 miles in 55 minutes. If she continues at the same speed, how many
    8·1 answer
  • What does 9+6(4+4) equal
    6·2 answers
  • David reads this advert on his county council website.
    8·2 answers
  • 5x+45-23x=24 What does x equal
    6·1 answer
  • 1) Find the volume of the rectangular pyramid below.<br><br> 21 cm<br> 1 cm<br> 29 cm
    6·1 answer
  • Bailey went out to dinner. It cost $ 45.00. He wanted to leave a 20% tip for his waitress. Find the tip.​
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!