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
Rashid [163]
3 years ago
6

Solve using any method. All work must be shown and handwritten.

Mathematics
2 answers:
Rashid [163]3 years ago
8 0

Answer:

x =  - 3

y = 1

Step-by-step explanation:

Write the system

3x - y =  - 10

x + y =  - 2

Solve by Elimination.

multiply the second equation by -3.

3x - y =  - 10

-3x   - 3y =  6

Add the Equations.

- 4y =  - 4

y = 1

Plug this back in one of the equations.

x + 1 =  - 2

x =  - 3

Snezhnost [94]3 years ago
8 0

Answer:

x = -3

y = 1

Step-by-step explanation:

3x - y = -10

x + y = - 2

x + y = - 2

x = -y - 2

replacing in other equation

3(-y - 2) - y = -10

-3y - 6 - y = - 10

rearranging the equation

-3y - y = = -10 + 6

-4y = -4

y = 1

putting this value in first eqn we get

x - y = -2

x - (1) = -2

x = -2-1

x = -3

You might be interested in
What is an equivalent expression to 14x^2 + 4y^3 - 3x^2 - 5 + 2y^3
katovenus [111]

Answer:

It’s C :)

Step-by-step explanation:

7 0
3 years ago
HELP WILL MARK BRAINLIEST What is the sum of the fractions? Use the number line and equivalent fractions to help find the answer
larisa86 [58]

Answer:

-3/4

or c

or the third answer

6 0
3 years ago
Read 2 more answers
What is f(2) if the linearization of f(x) at a = 2 is l(x) = 12x + 4?
Sliva [168]
The linearization at f(a) is
.. l(x) ≈ f(a) +f'(a)*(x -a)
Then
.. l(a) = f(a)

f(2) = l(2) = 12*2 +4
f(2) = 28
4 0
3 years ago
A Stainglass window is shaped like a semicircle. the bottom edge of the window is 36 inches long. what is the area of the staine
Advocard [28]

Answer:

123+546+213=555555364666566456646646465

5 0
3 years ago
A boy spent 20% of his money on books and 20% of the remainder on food.If he had $2000 left, how much money did he have at first
DENIUS [597]

Answer:

\$3,125

Step-by-step explanation:

Let s represent the amount of money he initially started with.

After he spent 20% on books, he will have 100\%-20\%=80\% of his initial money left. We can represent this as 0.8s.

Following that, the boy spends 20% of the remainder of his money on food. Similarly, he will have 100\%-20\%=80\% of the remainder of money he had left after he purchased the books. Therefore, he ends up with 0.8(0.8s)=0.64s of his money left.

Since we're given that he had $2,000 after all these transactions, we have the following equation:

0.64s=\$2,000

Divide both sides by 0.64 to isolate and solve for s:

s=\frac{2,000}{0.64}=\boxed{\$3,125}

Therefore, the boy had $3,125 to begin with.

7 0
3 years ago
Read 2 more answers
Other questions:
  • 121
    11·1 answer
  • What is the volume of a square pyramid with base edges 24ft and slant height 20ft
    9·1 answer
  • What is AE ? Enter your answer in the box. units Two segments A D and B C intersect at point E to form two triangles A B E and D
    15·1 answer
  • The table shows the temperatures and wind-chill temperatures in four towns. What is the difference between the actual temperatur
    15·1 answer
  • What are the possible degrees of the polynomial
    9·1 answer
  • Factor the polynomial expression 16y^4 - 625x^4
    5·1 answer
  • What is -38t+220 what is the answer
    14·2 answers
  • A circle has a circumference of 1{,}017.361,017.361, comma, 017, point, 36 units. What is the radius of the circle?
    10·1 answer
  • Pls I need help thank you
    7·1 answer
  • Will mark brainlist whoever answers first
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!