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
Andrew [12]
2 years ago
5

What is the solution of the following systems?

Mathematics
2 answers:
bearhunter [10]2 years ago
8 0

3x + 3y = 10   ⇒   3( 3x + 3y = 10)   ⇒    9x + 9y = 30

-9x - 9y = -30   ⇒ 1(-9x - 9y = -30)   ⇒ <u>  -9x - 9y </u>= <u>-30 </u>

                                                                    0 + 0 = 0

                                                                      TRUE

Since it makes a true statement, there are infinite solutions.

<em>When graphing, they are the same line.</em>

Answer: Infinite Solutions

Evgen [1.6K]2 years ago
5 0

\left\{\begin{array}{ccc}3x+3y=10\\-9x-9y=-30&|\text{divide both sides by 3}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}3x+3y=10\\-3x-3y=-10\end{array}\right}\qquad|\text{add both sides of equations}\\.\qquad\qquad\ \ \ 0=0\\\\3x+3y=10\ \ \ |-3x\\3y=10-3x\ \ \ |:3\\y=\dfrac{10-3x}{3}\\\\Answer:\\\text{It is dependent system of equations}\\\text}Infinite solutions}\\\\\left\{\begin{array}{ccc}x\in\mathbb{R}\\y=\dfrac{10-3x}{3}\end{array}\right

You might be interested in
ABCD is a quadrilateral inscribed in a circle, as shown below:
Sophie [7]

I think it's B but I'm not 100% sure

4 0
2 years ago
A candy store merchant sells 25kg ju-jubes for $3.00/kg. If he uses one brand selling for $2.25/kg and a second brand selling at
Flauer [41]
Let's say he has 1 kg of each
2.25/kg and 3.75/kg
add together and divide by 2 to get average
6/2=3

so it must be a one to one ratio

25 kg/2=12.5 kg of each



12.5 of each brand
6 0
3 years ago
What does the line in a scatter plot mean?
irakobra [83]

Answer:

the line represents the average slope in which the dots line up. in other words, it shows where most of the options/solutions are on the plot

Step-by-step explanation:

nice pfp

6 0
2 years ago
What graph best represents the solution to the equality y - 2x &gt; -8
Ne4ueva [31]

Answer:

<h2>In the attachment</h2>

Step-by-step explanation:

y-2x>-8\qquad\text{add}\ 2x\ \text{to both sides}\\\\y>2x-8\\-------------------------\\\\-\ dotted\ line\\\leq,\ \geq-\ solid\ line\\,\ \geq-\ shading\ above\ the\ line\\-------------------------\\\\y=2x-8-\text{It's a linear function.}\\\text{We only need two points to draw a graph.}\\\text{Choice two arbitrary values of x, substitute to the equation,}\\\text{and calculate the values of y}.\\\\for\ x=4\to y=2(4)-8=8-8=0\to A(4,\ 0)\\for\ x=0\to y=2(0)-8=0-8=-8\to B(0,\ -8)

6 0
3 years ago
A compact disc has an approximate Radius of 2 3/8 inches, what is the approximate area of a CD
professor190 [17]

Answer:

A≈12.57      

r Radius 2

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Allison has a poster that is 15 in by 18 in. What will the dimensions of the poster be if she scales it down by a factor of one-
    7·2 answers
  • Witch qu<br><br><br><br>adrilateral has 4 right angles
    15·2 answers
  • Write a number sentance that shows why the associative property does not work with subtraction
    11·1 answer
  • Find g(x) if it is known that g(2t)=8t−1.
    14·1 answer
  • A poll of 200 doctors across the nation found that 11 were assisted in their office by registered nurse , 83 were assisted by LV
    12·1 answer
  • Don't guess!
    10·1 answer
  • (1+1-1+1-1+1-1+1-1+1-1)*(1÷1)+(591+(-591))*1
    13·2 answers
  • Find the equation of a line that passes through the points (1,-5) and (3,-6).
    8·1 answer
  • Help me by today please, brainliest will be given :)
    8·2 answers
  • How much water should be added to a 15 gallon solution of 35% hydrogen peroxide to create an 8% solution? how many gallons would
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!