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
kkurt [141]
3 years ago
6

Use elimination to solve this system of equations. X-4y=-11 and 5x-7y=-10

Mathematics
1 answer:
timurjin [86]3 years ago
4 0
X-4y=-11<=> -5x + 20y = 55
                     <span> 5x - 7y    = -10</span>
                =>0*x + 13*y = 45 => y =45/13 => x = 4*(45/13) -11 = 180/13 -11 =>
x = 37/13;
You might be interested in
PWEASE HELP IF YOUBARE GOOD AT MATH
Novosadov [1.4K]
<h3>Answer: 2</h3>

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

Explanation:

The function f(x) = -4x+1 is the same as y = -4x+1 where y = f(x)

Compare this to y = mx+b and we see the slope here is m = -4

---------

Now let's find the slope of g(x)

use the slope formula with any two rows you want. I'll pick on the last two rows.

m = (y2-y1)/(x2-x1)

m = (21-9)/(3-1)

m = 12/2

m = 6 is the slope of g(x)

---------

From here, we add the two slope values

(slope of f)+(slope of g) = -4+6 = 2

3 0
3 years ago
Write an equation for a line parallel to y=−4x+5 and passing through the point (4,-21)
Sindrei [870]

Answer:

Y=-4x-5

Step-by-step explanation:

-21=-4(4)+b

-21=-16+b

b=-5

y=-4x-5

3 0
3 years ago
Read 2 more answers
I will name you the brainliest ! Which point represents -(-10) on the number line?
Anna007 [38]

Answer:

e

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Bonjour je ne comprend pas cette exercice; si quelqu'un peut m'aider je suis preneuse.
gayaneshka [121]

Answer:

0,24 m

Step-by-step explanation:

La table est un rectanble donc l'angle en  haut à droite est de 90°.

Tu connais donc un angle et le côté opposé à l'angle et tu cherche le côté adjacent.

On sait que tan(â) = \frac{Cote oppose}{Cote adjacent} donc :

tan(40)= \frac{1,27}{x}

\frac{1,27}{tan(40)} = x

donc x ≈ 1,51 m

Le trou du mileu est à \frac{2,54}{2} soit 1,27m du bord.

Donc elle doit taper à 1,51 - 1,27 = 0,24m du trou du milieu.

j'espère avoir été clair.

<h2 />
8 0
2 years ago
If d is 55 degrees then what is F and E degrees. Explain how you know​
kipiarov [429]

Answer:

F=55

E=70

Step-by-step explanation:

The total degree of a triangle is 180.

So we have 180-55*2

E=180-110

E=70

8 0
3 years ago
Other questions:
  • A ball is thrown into the air with an initial upwards velocity of 60ft/s. Its height (h) in feet after t secons is given by the
    14·1 answer
  • The table shows the first 4 terms of the patterns.
    10·2 answers
  • 3.) Alex makes $31,992 per year and pays about 15% of his gross monthly income in federal
    15·1 answer
  • Jess knows that X to the second power equals 64. Which of the following represents the step that Jess should take to find the co
    13·1 answer
  • Is the point (5,-3) on the circle defined by (x-5)^2+(y+3)^2=4
    15·1 answer
  • Please help me if you do not know the answer dont answer it​
    15·1 answer
  • An experiment consists of drawing 1 card from a standard​ 52-card deck. Let E be the event that card drawn is a heart. Find​ P(E
    7·1 answer
  • consider the expression (2m + n - 5) and (-3 - 5m + 6n) what is the sum of the expression for n = -3 and m =6​
    13·1 answer
  • Why did Sasuke have to kill Itachi though :(
    9·2 answers
  • What exponential expression is equal to 2^-5 . 2^8
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!