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
Bas_tet [7]
3 years ago
15

Solve 2x + 5y = –13. 3x – 4y = –8

Mathematics
2 answers:
disa [49]3 years ago
8 0
If you would like to solve 2x + 5y = - 13 and 3x - 4y = -8, you can do this using the following steps:

<span>2x + 5y = -13  /*4
3x - 4y = -8     /*5
</span>_________________
8x + 20y = -52
15x - 20y = -40
_________________
8x + 15x + 20y - 20y = -52 - 40
23x = -92    /23
x = -92 / 23
x = -4

<span>2x + 5y = -13
</span>2 * (-4) + 5y = -13
-8 + 5y = -13
5y = -13 + 8
5y = -5
y = -1

(x, y) = (-4, -1)

The correct result would be D.) <span>(-4, -1).</span>
Luden [163]3 years ago
8 0

After solving the equations 2x + 5y = –13 and 3x – 4y = –8, I got the value (–4, –1). The correct answer between all the choices given is the last choice or letter D. I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

You might be interested in
Can i get help on this one ? im almost running our of points i would give 50 but i need more ;-; anyway
JulsSmile [24]

Answer:

Step-by-step explanation:

Let x = third side

Using the Triangle Inequality theorem which states that the sum of two sides of a triangle must be longer than the third side and the difference of the two sides is the lower limit of the third side, the answer to your question is that the third side must be between 3 and 13, or written using inequalities, 3 < third side (or x) < 13 is the range.

4 0
3 years ago
Which of the following equations shows how substitution can be used to solve
maxonik [38]

Answer:  Choice B)

2x+5(2x+3) = 3

============================================

Reasoning:

We start with the second equation 2x+5y = 3

Since y = 2x+3 from the first equation, we can replace every copy of y with (2x+3). This replacement is valid because y and 2x+3 are the same.

So that's how we go from 2x+5y = 3 to 2x+5(2x+3) = 3

This replacement is done to get rid of the y variable, and it allows us to solve for x later on.

3 0
3 years ago
GUYS PLEASE HELP IM IN NEED I WILL MARK BRAINLIEST
jekas [21]
The answer would be 1/3 up 1 over 3.
6 0
3 years ago
Read 2 more answers
Re write the statement 19+7 divided by 2-5 by including one pair of brackets to make the total equal to 8
Oksanka [162]

Answer:

The solution is given below:

Step-by-step explanation:

The computation is shown below:

= 19 +  7 divided by 2 - 5

= (19 + 7) ÷ (2) - 5

= 26 ÷ 2 - 5

= 13 - 5

= 8

Hence, after solving this the value would be 8

Therefore it is equal to the 8

Hence, the given statement is true

6 0
3 years ago
Nobody even helps on this app anymore it’s so annoying :(
son4ous [18]

Answer:

Sometimes it does take time but then yet again it can take weeks to get an answer depending on the question.

Step-by-step explanation:

<u><em>EXAMPLE: </em></u>Forenisc Science Questions that are usually under Biology. I saw someone that put up this answer and hasn't gotten a response in a whole week until I actually took the test and gave him/her the answer. It even happens to me. I have many answers that have not been answered but I get used to it :( Have a good one! :)    

8 0
3 years ago
Other questions:
  • Shelley compared the number of oak trees to the number of maple trees as part of a study about hardwood trees in a woodlot. She
    7·1 answer
  • Find the circumference given the area = 437.4 in². Use 3.14 for π as necessary.
    9·2 answers
  • The hyperbola below is a graph of the equation x^2/3^2 - y^2/2^2=1. Which of the points satisfy the inequality x^2/3^2 - y^2/2^2
    13·1 answer
  • Given PQR ~ JKL solve for X
    7·2 answers
  • Y=|4x|-1 what is the absolute value
    6·1 answer
  • 11z 5 = 9z + 7 how do u solve this?
    9·1 answer
  • Suppose that each quarter at a particular community college Jared has to pay $729 in tuition and $22 in fees.
    15·1 answer
  • I want to visit a friend that lives 200 miles away. Gas is $4 a gallon. My car gets 50 miles every 2 gallons of gas. How can I s
    13·1 answer
  • If f(x)=2x^2+3x-4, find 2f(x)
    9·1 answer
  • Does anyone know what the. distance would be ?? plz answer asap only if you are correct:)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!