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
Dominik [7]
3 years ago
14

3x+2y= -19 solve by elimination of addition -3x-5y= 25

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
8 0

Answer:

x=-5, y=-2

Step-by-step explanation:

3x+2y= -19  

-3x-5y= 25

Add the two equations together

3x+2y= -19  

-3x-5y= 25

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

0x -3y = 6

Divide each side by -3

-3y/-3 = 6/-3

y = -2

Now find x

3x+2y = -19

3x +2(-2) =-19

3x-4 = -19

Add 4 to each side

3x -4+4 = -19+4

3x= -15

divide by 3

3x/3 = -15/3

x = -5

solong [7]3 years ago
5 0

Answer:

x = -5, y = -2

Step-by-step explanation:

3x + 2y = -19

-3x - 5y = 25

Add both equation together.

  • 3x + 2y = -19
  • <u>+ -3x - 5y = 25</u>
  • <u> 0 x -3y = 6</u>
  • -3y = 6

Divide each side by -3.

  • -3y/-3 = 6/-3
  • y = -2

Now, find x.

Substitute the value of y into the equation 3x + 2y = -19

  • 3x + 2( -2 ) = -19
  • 3x <u>- 4</u> = - 19

Move the constant to the right hand side and change their sign.

  • 3x = -19 + 4
  • 3x = -15

Divide both side by 3.

  • 3x / 3 = -15 / 3
  • x = -5

Therefore, x = -5 and y = -2

You might be interested in
Why would a statistician consider an inference incomplete without an accompanying measure of its​ reliability?
beks73 [17]

Answer:

An inference without a measure of reliability is nothing but a guess. The measure of reliability separates the science of statistics from the art of story telling. It gives a statistician a level of confidence that an inference made can to a reasonable extent be trusted

Step-by-step explanation:

8 0
4 years ago
Help with sons homework
Artemon [7]

Answer:

5. Read below

6 . A

Step-by-step explanation:

6. Meaning 8 x 6 = 48

for 5 add the people that ate pasta and chicken.

Subtract that total from 270.

5 0
3 years ago
What is π/6? I don’t know. No calculators!
Kamila [148]

Answer:

You could approximate pi to be 3.14, and divide that by 6.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Kelley writes the expression n 2 to model the phrase "xander studied two more hours than nandini." which best explains the accur
asambeis [7]

It is accurate. In the phrase “two more hours than Nandini,” n + 2 are correct translations. Then the correct option is A.

<h3>What is Algebra?</h3>

Algebra is used to analyze mathematical symbols, and logic is used to manipulate those symbols.

As an example, Kelley models the sentence "Xander studied two more hours than Nandini" using the equation n + 2.

Consequently, the following will describe Kelley's expression's accuracy the best:

It is precise. Since "two" is translated as "2," "more" as "+," and "Nandini's study time is unknown or "n," 2 + n or n + 2 are the appropriate translations for the sentence "two more hours than Nandini."

So, option A is the best choice.

To know more about Algebra visit:

brainly.com/question/3624808

#SPJ4

I understand that the question you are looking for is :

Kelley writes the expression n + 2 to model the phrase “Xander studied two more hours than Nandini.” Which best explains the accuracy of Kelley’s expression?

It is accurate. In the phrase “two more hours than Nandini,” “two” is “2,” “more” is “+,” and Nandini’s study time is unknown or “n,” so 2 + n or n + 2 are correct translations.

It is inaccurate. In the phrase “two more hours than Nandini,” “two” is “2,” “more” is “+,” and Nandini’s study time is unknown or “n,” so 2 + n is the correct translation.

It is inaccurate. In the phrase “two more hours than Nandini,” “two” is “2,” “more than” is “>,” and Nandini’s study time is unknown or “n,” so 2 greater-than n is the correct translation.

It is inaccurate. In the phrase “two more hours than Nandini,” “two” is “2,” “more than” is “<,” and Nandini’s study time is unknown or “n,” so 2 less-than n is the correct translation.

5 0
2 years ago
Find the quotient 6 2/7 ÷ 2 3/4​
gregori [183]

Answer:

Find the quotient.

6 2/7 divided by 2 3/4.

2 2/7. (MY ANSWER)

17 2/7.

2 6/11.

7/16.

Step-by-step explanation:

I hope this helps you!!

8 0
2 years ago
Read 2 more answers
Other questions:
  • 1. Erika has 4 ¾ gallons of Power Aid to serve her fitness club members. If each member gets ⅔ of a gallon of Power Aid, how man
    14·1 answer
  • Nara received a measles immunization at Dr. Arroys office the vaccine was measured in cubic centimeters a cubic centimeter has t
    6·2 answers
  • What transformations preserve measure of side lengths and angles.
    11·1 answer
  • A pizza parlor offers pizzas with diameters of 8 in, 10 in, and 12 in. find the area of each size pizza. round to the nearest te
    5·1 answer
  • Answer soon plz
    13·1 answer
  • Which players' hit totals would you use to find the range?​
    15·1 answer
  • Brainiest to correct answer<br><br> 7 (3x - 2)
    12·2 answers
  • 1. What do you notice about the equations where the end behavior tends towards y = 0 ?
    10·1 answer
  • Hey~<br> Please help me figure out this question..I’ll give ya a bonus if you explain ;p
    13·2 answers
  • Please can someone help me on this I’m trying to revise for my test and I don’t understand this question
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!