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
yan [13]
3 years ago
8

Solve 2x + 5y = −13 3x − 4y = −8

Mathematics
1 answer:
zlopas [31]3 years ago
6 0
If you would like to solve 2x + 5y = -13 and 3x - 4y = -8, you can do this using the following steps:

2x + 5y = -13       /*4
3x - 4y = -8         /*5
_______________
8x + 20y = -52
15x - 20y = -40
_______________
8x + 15x + 20y - 20y = -52 - 40
23x = -92
x = -92 / 23
x = -4

<span>3x - 4y = -8 
</span>3 * (-4) - 4y = -8
-12 - 4y = -8
12 + 4y = 8
4y = 8 -12
4y = -4
y = -1

The correct result would be x = -4 and y = -1.
You might be interested in
.   Multiply (x + 3)(x – 3).
konstantin123 [22]
X × x = x^2
x × -3 = -3x
3 × x = 3x
3 × -3 = -9

x^2 + 3x - 3x - 9
So I would agree with C because the -3x and the 3x cancel each other out. I hope this helps!
8 0
3 years ago
I NEED HELP ASAP. BEFORE 4:00
sineoko [7]

Answer:

The measure of x = 45 degrees

3 0
3 years ago
Read 2 more answers
Is y = 0.5x - 1 a liner function
Mama L [17]

\text{Yes, it is a linear function}\\\\\text{The reason why it's a linear function is because there is a constant change}\\\\\text{The constant change would be your slope, and the slope in this case}\\\text{is 0.5}\\\\\text{If you plug this equation in a graph, it would be a straight line forever}\\\\\text{If you want to know if a line is linear, just check the slope to see if it's}\\\text{constant.}

8 0
3 years ago
Read 2 more answers
Please respond in detail
Serggg [28]

Answer:

No.

Step-by-step explanation:

As x increases 2^x will grow faster than 5 x^2. This is because the x in 2^x is an exponent and its graph grows very steeply compared with 5x^2 , as x increases.

For example when x = 10

5x^2 = 5*10^2 = 500

2^x =  2^10 =1024

When x = 11:

5x^2 = 605

2^x = 2048 and the difference will continue to increase.

6 0
3 years ago
2% of the ducks in a pond have a fluffy tail. If 4 ducks have a fluffy tail, how many ducks are in the pond. Please answer best
GuDViN [60]

Answer:

200 ducks total in the pond

Step-by-step explanation:

2% of x equals 4

0.02x = 4

x = 200

6 0
3 years ago
Other questions:
  • Maggie jogged 7/8 mile on monday and half of that on tuesday. How far did she run on tuesday?
    11·1 answer
  • The Russo-Japanese War was a conflict between Russia and Japan that started in the year 1904. Let x represent any year. Write an
    14·1 answer
  • For the angles shown in the diagram, which statements are true? Select all that apply.
    9·1 answer
  • 2 over 5 divided by 5 over 9
    12·2 answers
  • to make 2 batches of nut bars jayda needs to use 4 eggs how many eggs are used in each batch of nut bars 1/2 eggs per batch 2 eg
    7·1 answer
  • PLZ HELP :(
    7·2 answers
  • What is the surface area of the shape DUE AT 10:15 AM
    13·1 answer
  • Does anyone know what 8x+4 = 3x+2?
    10·2 answers
  • How do you write 3<br> 5<br> /<br> 12<br> as a decimal
    10·2 answers
  • (q006) suppose you are a participant in an online forum where people review online games, and one participant recently posted an
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!