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
Reil [10]
3 years ago
9

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

Mathematics
1 answer:
attashe74 [19]3 years ago
8 0
First, isolate x in x-4y=11 because 1 is x's coefficient.
x-4y=11
x=11+4y
Now, substitute 4y+11 for x in 5x-7y=-10.
5x-7y=-10
5(4y+11)-7y=-10
20y+55-7y=-10
Add all coefficients.
13y+55=-10
Isolate y by subtracting 55 from both sides.
13y+55=-10
13y=-10-55
13y=-65
y=-5
Now substitute -5 for y in your first equation.
x=11+4y
x=11+4(-5)
x=11-20
x=-9
Your answer would be (-9,-5).
Any questions you may have, please contact me or comment.
You might be interested in
What is the end behavior of the graph of the polynomial function <img src="https://tex.z-dn.net/?f=y%3D10x%5E9-4x" id="TexFormul
Cerrena [4.2K]
Since the highest power is nine, it will have ends going in opposite directions.
As x approaches infinity, y approaches infinity
As x approaches negative infinity, y approaches negative infinity
3 0
3 years ago
Read 2 more answers
What is the value of the expression 2[3(4^2+1)]-2^3?
puteri [66]

Answer: 94

Step-by-step explanation: use photo math :)

8 0
2 years ago
Read and analyze the following then solve. <br>ASAP ASAP ASAP ASAP ASAP ASAP ASAP ​
Vaselesa [24]

☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾

<h3>JOH-EUN OHUEYO!!</h3>

(GOOD AFTERNOON)

➢

\frac{3}{6}  \times  \frac{1}{2}  =  \frac{1}{4}

➢

\frac{5}{7}  \times  \frac{3}{8}  =  \frac{15}{32}

➢

\frac{4}{8}  \times  \frac{1}{4}  =  \frac{1}{8}

➢

2 \frac{1}{2}  \times 3 \frac{2}{5}  = 8 \frac{1}{2}

➢

\frac{8}{14}  \times  \frac{1}{2}  =  \frac{2}{7}

➢

\frac{3}{4}  \div  \frac{1}{4}  = 3

➢

1 \frac{2}{3}  \div 2 \frac{3}{5}  =  \frac{25}{39}

➢

\frac{3}{9}  \div  \frac{2}{3}  =  \frac{1}{2}

➢

1 \frac{3}{7}  \div 2 \frac{1}{6}  =  \frac{60}{91}

➢

2 \frac{4}{5}  \div  \frac{3}{10}  = 9 \frac{1}{3}

☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾☆☾

3 0
3 years ago
Read 2 more answers
two runners start 30kilometer apart and run toward each other. they meet after 3hours. One Runner runs 2 kilometers per hour fas
belka [17]

Let the slower runners speed be X kilometers per hour.

Then the faster runners speed would be X+2 kilometers per hour.


The formula for distance is Speed times time.

The distance is given as 30 kilometers and time is given as 3 hours.


Since there are two runners you need to add the both of them together.

The equation becomes 30 = 3x + 3(x+2)

Now solve for x:

30 = 3x + 3(x+2)

Simplify:

30 = 3x + 3x +6

30 = 6x + 6

Subtract 6 from each side:

24 = 6x

Divide both sides by 6:

x = 24/6

x = 4


The slower runner ran at 4 kilometers per hour.

The faster runner ran at 4+2 = 6 kilometers per hour.


3 0
3 years ago
As used in line 53, "dominion" most nearly means
drek231 [11]

Choice B - Supremacy

As used in line 53, "dominion" most nearly means supremacy.

In the first paragraph of Passage 2, when discussing changing social relations, Mill writes that in her time there was "a just equality, instead of the supremacy of the strongest." In this context of a society where some once had much more power than others, the word "dominion" almost means superiority or greater power.

Choices A, C, and D are incorrect because, in the context of a paragraph discussing differences in the amount of power members of a society have, "dominion" means dominion or greater power, not omnipotence or the state of being all-powerful (choice A), possession ( choice C) or territory (choice D).

For more information about dominion, visit

brainly.com/question/11588378

#SPJ4

6 0
1 year ago
Other questions:
  • Which is the best estimate of -14 1/9 × -2 9/10 ​
    11·2 answers
  • Can someone help me? Plz will mark brainliest!
    11·1 answer
  • melissa bought 12 packages of stickers that cost $1.94 each before tax and 18 packages of paper that cost $3.29 each before tax.
    13·1 answer
  • The freezer is 18c after cooling the temp. Was -12c, what's the difference?
    13·2 answers
  • Given the point (5.5,-7) name a second point so that the two points form a vertical segment
    9·1 answer
  • Christopher buys 120 hot dog buns for a picnic. He buys two different brands of hot dog buns. Brand X has 12 hot dog buns in a p
    14·1 answer
  • Where do the equations y=2x and y=<img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20" id="TexFormula1" title=" x^{2} " alt=" x^
    13·1 answer
  • Show your work: convert 1/8 into a decimal
    7·1 answer
  • Brenda has 14 fewer apps than Caleb. If Caleb deleted 5 apps, then he would have twice as many as Brenda. How many apps do Brend
    8·1 answer
  • Aisha is ordering a taxi from an online taxi service. She has to pay a flat charge just to
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!