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
Greeley [361]
3 years ago
12

3x+y=9 and 3x=9-y solve each system by elimination to prove your answer, I am stuck on this one

Mathematics
1 answer:
Svetllana [295]3 years ago
7 0
Infinitely many solutions.I will try to solve your system of equations.<span><span><span><span>3x</span>+y</span>=9</span>;<span><span>3x</span>=<span><span>−y</span>+9</span></span></span>Step: Solve<span><span><span>3x</span>+y</span>=9</span>for y:<span><span><span><span>3x</span>+y</span>+<span>−<span>3x</span></span></span>=<span>9+<span>−<span>3x</span></span></span></span>(Add -3x to both sides)<span>y=<span><span>−<span>3x</span></span>+9</span></span>Step: Substitute<span><span>−<span>3x</span></span>+9</span>foryin<span><span><span>3x</span>=<span><span>−y</span>+9</span></span>:</span><span><span>3x</span>=<span><span>−y</span>+9</span></span><span><span>3x</span>=<span><span>−<span>(<span><span>−<span>3x</span></span>+9</span>)</span></span>+9</span></span><span><span>3x</span>=<span>3x</span></span>(Simplify both sides of the equation)<span><span><span>3x</span>+<span>−<span>3x</span></span></span>=<span><span>3x</span>+<span>−<span>3x</span></span></span></span><span>(Add -3x to both sides)

so ur answer is
</span><span>Infinitely many solutions.</span><span>

</span>
You might be interested in
Why are the triangles congruent?
MariettaO [177]

Answer:

SAS (side angle side)

Step-by-step explanation:

the third one

4 0
3 years ago
Read 2 more answers
Grandma baked 96 cookies and gave them to her grandchildren. One of the grandchildren, Cindy, received 5 fewer cookies than she
Harman [31]
If the cookies had been divided equally between the h grandchildren then each grandchild would receive 96/h  cookies.
So Cindy  received (96/h) - 5   cookies
8 0
3 years ago
Read 2 more answers
Let <img src="https://tex.z-dn.net/?f=K" id="TexFormula1" title="K" alt="K" align="absmiddle" class="latex-formula"> be a circle
yan [13]

The bisector of angle APQ passes through O and this is illustrated below.

<h3>How to illustrate the information?</h3>

From the information given, the center is O. and the circle passes through O and cuts at K.

In this case, it should be noted that the circles are equal according to the SAS test.

Here, AOB + APQ = 180° (Linear pair)

2AOB = 180

AOB = 90.

Therefore, the bisector of angle APQ passes through O.

Learn more about bisector on:

brainly.com/question/11006922

#SPJ1

8 0
2 years ago
The area of a circular swimming pool is approximately 18 m2. Which is the best estimate of the radius (r)?
DENIUS [597]

Answer:

the radius=9m2

i solve the question and answer is 9

8 0
3 years ago
Need help asapdue today at 11 am
goblinko [34]

12 ×  8 = 96        3 × 3 = 9     96 - 9 = 87

(unlucky jasmine she does not have enough paint )

8 0
3 years ago
Other questions:
  • Given the equation 2Square root of x minus 5 = 2, solve for x and identify if it is an extraneous solution.
    7·2 answers
  • Rewrite expression using I. Root - 72
    14·1 answer
  • I need help please please please
    13·2 answers
  • I NEED HELP ASAP PLEASE. I CANT THINK TOO MUCH RN SO YEAH PLEASE HELP
    14·1 answer
  • Luis worked 40 hours last week and earned a total of $528. His job at Cub pays $9 per hour and
    12·1 answer
  • What is the area of parallelogram if base is 13 and the height 14
    14·1 answer
  • Three planes intersect in ?
    15·1 answer
  • A teacher randomly selects 10 out of her 30 students and finds that the mean height of those 10 students is 5′2". Is this a samp
    14·1 answer
  • Help me answer plz lol
    11·1 answer
  • Pls help or i get an F on my grade
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!