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
horrorfan [7]
2 years ago
14

Solve each pair of simultaneous equations by substitution method

Mathematics
2 answers:
babunello [35]2 years ago
5 0

Answer:

x = 1 and y = -4

Step-by-step explanation:

Let's substitute y = -4x into x + 3y = -11

x + 3(-4x) = -11

x - 12x = -11

-11x = -11

/-11     /-11

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

x = 1

You can plug x = 1 into either of the given equations. Let's do x + 3y = -11

1 + 3y = -11

-1           -1

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

3y = -12

/3      /3

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

y = -4

Your values are, x = 1 and y = -4.

WARRIOR [948]2 years ago
3 0

Answer:

x = 1       y = -4

Step-by-step explanation:

- Plug the value of y into the other equation.

x + 3y = -11

x + 3(-4x) = -11

x - 12x = -11

-11x = -11

x = 1

- Now substitute the value of x into any equation.

y = -4x

y = -4(1)

y = -4

You might be interested in
Question 9 of 10
evablogger [386]

Answer:

B and C

Step-by-step explanation:

vertical angles are angles that are opposite of each other when two lines cross. Vertical angles are congruent = they are equally large.

the angles listed in B and C are mirrored across either an imaginary or a directly visible line. and that makes them vertical angles.

4 0
2 years ago
Identify whether the graph displays a linear or nonlinear function. Explain why. Graph A On a coordinate plane, graph A goes thr
12345 [234]

Answer: Linear function; the rate of change is consistant

5 0
3 years ago
Read 2 more answers
Can you help with Issue A?
defon

Answer:

$16,532.98

Step-by-step explanation:

Her last deposit = 500, second last = 500 x 1.05, third last = 500 x 1.05^2................ first deposit = 500 x 1.05^19

=500 +500 x 1.05 + 500 x 1.05^2 + 500 x 1.05^19

= 500(1.05^20-1) divided by (1.05-1)

= 16532.98

7 0
3 years ago
Cómo se escribe el número 88,317​
Ksenya-84 [330]

Answer:

ochenta y ocho mil trescientos diecisiete

Step-by-step explanation:

eighty-eight thousand three hundred seventeen

8 0
3 years ago
Read 2 more answers
Ming made 7 batches of muffins. She used 1.75 pounds of apples per batch. How many pounds of apples did Ming use to make all the
MrMuchimi

Answer:

12.25

Step-by-step explanation:

Multiply the pounds of apples by the batches.

1.75×7=12.25

4 0
2 years ago
Other questions:
  • give an example of two principal amounts and two periods of time for which the simple interest turned at 2.42 percent would be e
    13·1 answer
  • use the fact that there are 2pi radians in each circle to find another angle,smaller than 2pi,that is equivalent to 13pi/4
    7·2 answers
  • Find the diameter of a circle with an area of 676π square centimeters.
    6·1 answer
  • Question Help
    15·1 answer
  • PLEASE HELP!!! I really don't understand how to calculate the mileage and SHOW YOUR WORK PLEASE!!! THANK YOU!!
    10·1 answer
  • Students are asked to memorize a list of 100 words. The students are given periodic quizzes to see how many words they have memo
    5·1 answer
  • What is the answer...?
    10·1 answer
  • Work out the size of angle x
    13·1 answer
  • Describe the transformation
    12·2 answers
  • Solve the equation. <br><br> h + | -8| = 15
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!