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
vaieri [72.5K]
3 years ago
11

What is the solution to the system of equations? -2x + y = -5 3x – 2y = 12 A) (3, 1) B) (6, 3) C) (-2, -9) D) (-2, -1)

Mathematics
1 answer:
max2010maxim [7]3 years ago
6 0

Answer:

The correct answer is D) (-2, -1)

Step-by-step explanation:

In order to solve this system of equations, start by multiplying the entire first equation by 2. Then add the two equations together. This will get the y's to cancel and allow you to solve for x.

-4x + 2y = -10

3x - 2y = 12

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

-x = 2

x = -2

Now that we have the value for x, we can find y by plugging the x value into either equation.

-2x + y = -5

-2(2) + y = -5

-4 + y = -5

y = -1

You might be interested in
Choose the inequality that could be used to solve the following problem.
kirill115 [55]

Answer:

Correct choice is C

Step-by-step explanation:

Let x be unknown number.

Three times a number x is 3\cdot x=3x.

Three times a number is no less than negative six means that the number 3x can be equal to -6, can be greater than -6, but cannot be less than -6.

Thus,  the inequality that could be used to solve the  problem is

3x\ge -6.

7 0
3 years ago
Read 2 more answers
Please help! Question is below, and the answers to choose from are in next photo.
Bogdan [553]
I can't see the next photo but I'm assuming that's what you're asking

7 0
3 years ago
Read 2 more answers
2. The population of Small Town, Alabama was 13,128 in 1990 but the town is growing at a rate
belka [17]

Answer i've done the math multiple times and everytime i get the answer 21,950. i don't think i'm doing the math wrong, maybe try asking the teacher or whoever is the one grading it cause it could be a typo or something like that.

Step-by-step explanation:

7 0
3 years ago
1/2(x + 1)²- 3
Ierofanga [76]

Answer:

  • a = 1/2
  • h = -1
  • k = -3

Step-by-step explanation:

We assume you want to compare your expression to the form ...

  a(x -h)² +k

  1/2(x +1)² +k

The multiplier outside parentheses is ...

  a = 1/2

The horizontal offset inside parentheses is ...

  -h = 1

  h = -1

The vertical offset outside parentheses is ...

  k = -3

4 0
3 years ago
Help me please<br> i've ask this 3 times and didn't get a correct answer
jasenka [17]

Answer:

240

Step-by-step explanation:

So to do this problem, you have to find the area of each 2d figure. To start off,  you need to find the top sides. (to make this easier I won't show the work)

<u>Green-</u>  Top & bottom: 16. Sides (4): 28

<u>Pink-</u>  Top & bottom: 8. Sides (4): 20

Now you add it all up.

32+112+16+80=240

8 0
3 years ago
Read 2 more answers
Other questions:
  • Can some one help me with this?????
    13·2 answers
  • What would a 20% increase of 25.9 be? I think it'd be 77.22 but not quiet sure
    15·2 answers
  • Describe a method for writing an exponential equation given a graph
    14·1 answer
  • 30 is what percent of 60
    14·2 answers
  • You have 80 grams of a radioactive kind of vanadium. How much will be left after 48 days if it’s half-life is 16 days?
    6·1 answer
  • Answer mah question pleeease~
    5·2 answers
  • Show how you arrived at your answers.
    8·1 answer
  • Explain the steps you would take to complete this conversion problem.
    11·1 answer
  • Since the cost of cheese went up, the cost of small pizza went from $5.45 to $6.50. calculate the percent increase.
    9·2 answers
  • What is the quoiet to 3/8 and 4/9
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!