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
Ty is eight inches shorter than his brother Reece. If Ty is 42 inches tall, how tall is Reece.
sammy [17]

Answer: reece is 50 inches tall

Step-by-step explanation:

42+8=50

4 0
3 years ago
Read 2 more answers
Find K by evaluating Limit
Lubov Fominskaja [6]

Answer:

4

Step-by-step explanation:

\lim_{x \to \infty}\frac{1-cos4x}{1-cos2x}= \lim_{x \to 0} \frac{(1-cos4x)'}{(1-cos2x)'}= \lim_{x \to 0}\frac{4sin4x}{2sin2x}= \lim_{x \to 0}\frac{2*2sin2xcos2x}{sin2x}\\ = \lim_{x \to 0}4cos2x\\ =4

{L'Hospital's rule}

<em>I hope this helps you</em>

<em>:)</em>

6 0
2 years ago
For each pair of functions F and G below, find f(g(x)) and g(f(x)).
8090 [49]

Answer:

FG

Step-by-step explanation:

COOL AIDS BRO FAX AND MORE STUFF

8 0
2 years ago
Help find the value of x pls
boyakko [2]

Answer:

x=2°

Step-by-step explanation:

The given angles are corresponding angles.

Corresponding angles are congruent.

7x+3=8x+1

2=x

x=2

8 0
2 years ago
Natalia needs 9 apples to make her famous apple pie. Natalia 25 apples. Naomi surprised her with a basket of 11 apples. How many
pychu [463]

Answer:

4

Step-by-step explanation:

25+11 because u have 25 an u get 11 more so that's 36 total

36÷9 because if your total is 36 an it takes 9 apples make 1 pie u would divide

4 0
2 years ago
Other questions:
  • What is the range of this function?
    11·2 answers
  • HELP ME!!! I BEGG , HELP
    14·1 answer
  • A rectangular prism with a square base is cut from the center of a triangular prism. Each side of the square base measures 1.7 u
    13·2 answers
  • There are 7 cards with a picture of a rose and 2 cards with a picture of a daisy. Alfa keeps all the cards face down on the tabl
    12·2 answers
  • One line passes through the points \blueD{(-3,-1)}(−3,−1)start color #11accd, (, minus, 3, comma, minus, 1, ), end color #11accd
    15·2 answers
  • The sum twice a number and 3 is 54
    8·1 answer
  • What is the width of a rectangle with an area of 5/8 inches and a length of 10'inches
    10·1 answer
  • - A group of cells grows in number as described by the
    10·1 answer
  • If Hannah can complete 4 math problems every minute how many can she solve in 15 minutes
    5·2 answers
  • Which polygons can be mapped onto each other by similarity transformations? CH 6.51 ER 6 RU 5.5 M 5 D 4.5 N 4 Polygon 3 Р 3.5 Q
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!