2x+4y=12
x+2y=6--(2)(1)×1 and (2)×3[tex]\\ \rm\Rrightarrow 3x+y=8[/tex]
[tex]\\ \rm\Rrightarrow 3x+6y=18[/tex]
Subtract both
[tex]\\ \rm\Rrightarrow -5y=-10[/tex]
[tex]\\ \rm\Rrightarrow y=\dfrac{-10}{-5}[/tex]
[tex]\\ \rm\Rrightarrow y=2[/tex]
Put the value in eq(2)
[tex]\\ \rm\Rrightarrow x+2(2)=6[/tex]
[tex]\\ \rm\Rrightarrow x+4=6[/tex]
[tex]\\ \rm\Rrightarrow x=6-4=2[/tex]
Answer:
x=2, y=2
Step-by-step explanation:
-2(3x+y=8)
3(2x+4y=12)
-6x+-2y=-16
6x+12y=36
0+10y=20
y=2
3x+2=8
3x=6
x=2
Which table shows a linear function?
O
-3
-3.
1
2
-2
2
5
X
3
0
O
-3
-2
1
2
-3
-5
x х
y
-3
-1
0
2
0
2
3
5
Answer:
Its the 3rd one,
Step-by-step explanation:
Because the X (Multiplier) is 1 and the Y (Initial starting point) is 3 so if you plug the numbers in, you'll get linear answers. :)
Which is a prime number?
A.0
B.1
C.3
D.9
Answer:
3
Step-by-step explanation:
NotePrime numbers are numbers that have two factors thus 1 and the number itself . Example; 2 ,3,5 ,7 and 11
BesidesAlso 0 and 1 is not a prime number
Answer:
C. [tex]\displaystyle 3[/tex]
Step-by-step explanation:
Prime Numbers consist of two factours -- 1 and that number. Just so you know, you can AUTOMATICALLY eliminate the first two choises because those two numbers are not composite nor prime. Now, I can predict that your next lesson will probably be about prime factorisation, in which you have to find the prime factorisation of numbers, using two methods:
Factour TreeLadder DiagramFactour Tree Ladder Diagram
3 3|3
| ⁻⁻
3 1
Factour Tree Ladder Diagram
9 3|9
/\ ⁻⁻
3 3 3|3
⁻⁻
1
So, the prime factorisation of 9 is [tex]\displaystyle 3^2,[/tex]and the prime factorisation of 3 is 3.
I am joyous to assist you at any time.
volume= a 18 b 24 c 36
Answer:
15,552
Step-by-step explanation:
V = A • B • C
V = 18 • 24 • 36
Anyone plz plz help only 4 questions and I will mark as brainliest plz more points
Answer:
i)
x = 50°, alternate interior anglesz = 60°, corresponding anglesy = 180° - (50° + 60°) = 70°, straight angle is 180°ii)
b = 180° - 152° = 28°, consecutive interior anglesa + b = 58° ⇒ a = 58° - 28° = 30°, alternate interior anglesiii)
Imagine parallel line through vertex of angle x.
x = 36° + 28° = 64°iv)
Same as above:
x = 360 - (45° + 35°) = 280°Kamille brought a new outfit that cost $32.00. The tax rate is 9%. How much did she pay for the outfit after tax?
Ms. Roth went to I-Hop for breakfast. She ordered pancakes for $5.00, eggs for $3.50, and orange juice for 42.50. if she tips the waiter 16%, how much will she pay in total?
Please ANSWER QUICK!!!
and give me an explanation if you can (optional).
THANK YOU!!!!
Answer:
Kamille paid $34.88 for her outfit after tax.
Ms. Roth will pay $59.16 in total.
Step-by-step explanation:
Kamille brought a new outfit that cost $32.00. The tax rate is 9%. How much did she pay for the outfit after tax?
32.00 x 0.09 = 2.88
32 + 2.88 = 34.88
Ms. Roth went to I-Hop for breakfast. She ordered pancakes for $5.00, eggs for $3.50, and orange juice for 42.50. if she tips the waiter 16%, how much will she pay in total?
5 + 3.5 + 42.50 = 51
51 x 0.16 = 8.16
51 + 8.16 = 59.16
Evaluate each function. Step by step.
1) k(t) = -2|3t| + 2; Find k(-5)
2) g(n)=-3n^2+3+2n; Find g(-3)
Answer:
Substitute what t and n equals to in the equation and just solve using algebra.
So number 2, plug in -3 where ever the variable N is located in and solve.
g(-3) = 3(-3)^2+3+2(-3) ---> g(-3) = 27+3-6 ---> g(-3) = 24 That's the answer for 2.
For 1
plug in -5 into the t variable and solve.
k(t) = -2 |3(-5)| + 2 Since the || is between the 3 and 5, answer will be positive.
k(t) = -2(15)+2
k(t) = -28
Step-by-step explanation:
Jim's cat can run 4 blocks in 15 seconds. Juanita says one of her cats can run 3 blocks in 11
seconds. Who has the fastest cat? How did you decide?
Answer:
Juanita's cat is faster because it can run more blocks in a second
Step-by-step explanation:
Take the number of blocks and divide by the number of seconds
Jim:
4 blocks/ 15 seconds
.26666.... block per second
Juanita
3 blocks / 11 seconds
.2727...... blocks per second
Juanita's cat is faster because it can run more blocks in a second
Jennah was evaluating the expression-7+83+ 14. Here is her work
-7+ 83 + 14
75 +14
89
Do you agree or disagree with her answer Explain.
Answer:
NO.
AS SHE HAS DONE SUBTRACTION THEN ADDITION .
BUT WE SHOULD TO ADDITION THEN SUBTRACTION.
V.B.O.D.M.A.S
ANS IS 90...
[tex]no \: i \: am \: totally \: disagree \: with \: \\ her \: because \: - 7 + 83 + 14 \\ = 76 + 14 \\ = 90 \\ she \: get \: 89 \\ [/tex]
thank you
P (iv) BB If A = {a, m} find AXA If A = {w, a, i) and B = {e, h, o, w}, find the following (i) A XB (ii) B XA (iii) A XA a) If A x B = {(2, a),(3, a), (2, b), (3, b)} find set A and set B b) If PX Q = {(a, 1), (b, 1), (a, 2), (b, 2), (C, 1). (c. 2) Find (1) set P and set Q (i) P P
I HOPE IT WILL HELP YOU A LOT.
PLEASE HELP ME, I WILL FAIL IF I DON'T GET THIS
The number of writing instruments in some teachers' desks is displayed in the dot plot. Which is greater the mean or the median? Explain your reasoning using the shape of the distribution.
Answer:
the median is greater.
Step-by-step explanation:
the median would be 2 when you take the average of the middle two numbers. the mean would be 1.75 when you average all of them. 2 is greater.
Answer:
Median is greater than the mean
median = 9.5
mean = 9
Step-by-step explanation:
The shape of the distribution is skewed right, so the median will most likely have a higher value than the mean
find LCM and HCF for the following
a. prime product of 12=2^2×3
b. prime product of 15=3×5
c. prime product of 48=2^4×3
d. prime product of 72=2^3×3^2
Answer:
pls follow me. and. give me.thanks also
(6, 3), (7, - 4) a -7 b . 1 c . 7 d . - 1/7
Answer:
The answer is a. -7
Step-by-step explanation:
Given,
[tex]A=(6,3)\\B=(7,-4)[/tex]
We know,
[tex]Coordinate\,\,plane,m=\frac{y_{2}-y_{1} }{x_{2}-x_{1}} \\So,Coordinate\,\,plane\,\,for\,\,AB,m=\frac{-4-3 }{7-6}=\frac{-7}{1}=-7[/tex]
Hope you have understood this.....
ask me if you have any confusion.....
if you liked it pls mark it as the brainliest
someone please help ASAP
Answer:
[tex]{ \boxed{rational \: numbers}} \\ \frac{7}{16} \\ \\ \sqrt{36} = \{6 \} \\ \\ \sqrt{81} = \{9 \}[/tex]
[tex]{ \boxed{irrational \: numbers}} \\ \sqrt{120} \\ \\ \sqrt{48} \\ \\ \pi[/tex]
Simplify the following without a calculator: (14−2)÷2
Answer:
7/2
Step-by-step explanation:
(14−2)÷2
PEMDAS says parentheses first
7 ÷2
7/2
[tex]2\sqrt{x} 15[/tex]
Answer:
[tex]2 \sqrt{15x} [/tex]
Step-by-step explanation:
[tex]2 \sqrt{x5} [/tex]
[tex] = 2 \sqrt{15x} [/tex]
(b) Eric removed 72 fish from his pond over a period of 9 days. He removed the same number of
fish each day, What was the change in the number of fish in the pond each day?
fish
FASTEST WIL BE THE BRAINLIEST
Answer:
-8
Step-by-step explanation:
72 ÷ 9 = 8
The fish are being taken out, so negative.
I hope this helps!
pls ❤ and mark brainliest pls!
what is 30% of 175? Plz give info on how to solve, don't just say the answer.
Answer: 52.5
Step-by-step explanation: 175 x .3
Answer:
30 × 175 / 100
52.5
step by step explanation
The price of an item has risen to $ 247 today. Yesterday it was $ 95 . Find the percentage increase.
Answer:
160 %
Step-by-step explanation:
percent change is : (new- old)/ old * 100%
(247 - 95)/95 * 100%
160 %
Answer:
160% increase
Step-by-step explanation:
Take the new price and subtract the original price
247 -95
152
Divide by the original price
152/95
1.6
Change to percent form by multiplying by 100%
1.6*100%
160%
Which of the following equations has a slope of 3?
O 6x - 2y = 5
O 3x + 4y = 12
O y = 4x + 3
The answer 6x - 2y = 5
Step-by-step explanation:
The general formula of linear equations is y = mx + c
where m is the slope
so when we put this in the general form, it will be
-2y = -6x + 5
y = 3x - 5/2
and so the slope is 3
Domain and range from graph
What is the domain of g?
Answer: A
Step-by-step explanation:
Answer:
-6 < x < 6
Step-by-step explanation:
Domain refers to the list of all x-values included in the function. In this instance, the list of x-values in this function is between -6 and 6.
ALGEBRA 2:
Justify the equation by stating one of the properties of real numbers.
x + (37 + (-37)) = x + 0
Answer:
The property is the neutral element, in this case, it's the 0
The equation is justified using the additive inverse property of real numbers. The equation [tex]\(x + (37 + (-37)) = x + 0\)[/tex] is justified by the additive inverse property of real numbers.
According to the additive inverse property, for any real number a, there exists another real number -a such that their sum is equal to zero:
[tex]\(a + (-a) = 0\)[/tex]
In the given equation, 37 and -37 are additive inverses of each other, meaning [tex]\(37 + (-37) = 0\).[/tex] Therefore, the equation simplifies to:
[tex]\(x + (37 + (-37)) = x + 0\)\(x + 0 = x\)[/tex]
So, the equation is justified using the additive inverse property of real numbers.
To know more about equation:
https://brainly.com/question/8651602
#SPJ3
Which numbers are equivalent to 0.7? Choose all that apply.
Answer:
b. and f.
Step-by-step explanation:
They're equal to each other and are the only ones that give you 0.7 when dividing the numerator by the denominator.
Explain why the decimal for 3/6 is called a terminating decimal.
PLEASE ANSWER QUICKLY!!!
Fill in the boxes with the correct words. FIRST WITH THE CORRECT ANSWER GETS BRAINLIEST!!!
Answer:
Consist of data presented in rows and columns.
Labels on the rows and columns tell you what numbers on the table are trying to produce.
Organize data makes it easier to graph charts and tables.
Show the state a national capital of a region.
Show the geographical locations/biomes of a region such as mountains, plains, and bodies of water.
Show relationships between sets of data
Show relationships between input and outputs, often using circles or lines.
Expand (2x-1)(x-3)
please answer quick
Step-by-step explanation:
(2x-1)(x-3)
= 2x (x-3) - 1(x-3)
[tex] = 2 {x}^{2} - 6x - x + 3[/tex]
[tex] = 2 {x}^{2} - 7x + 3(ans)[/tex]
Answer:
2x^2-7x+3
Step-by-step explanation:
(2x-1)(x-3)
multiply 2x by (x-3) - 1(x-3)
= 2x (x-3) - 1(x-3)
multiply by 2x and by one
=2x^2-6x-x+3
simplify -6x-x= -7x
answer
=2x^2-7x+3
Solve the equation. Check your answer.
b - 1+ 8 = 37
b=?
Answer:
b = 30
Step-by-step explanation:
b - 1 + 8 = 37 (Given)
b + 7 = 37 (Simplify)
b + 7 - 7 = 37 - 7 (Subtract 7 on both sides)
b = 30 (Simplify)
A recipe for fluffy slime calls for 3 % cups of shaving
cream, 72 cup of glue, 12 teaspoon of baking soda
and 1 1/2 tablespoons of saline solution; this is
enough for 2 people. How much shaving cream
would you need if you were making enough slime
for ten people?
Answer:
2/4
Step-by-step explanation:
can someone explain how my teacher got this answer?
Answer:
cause shes smart?
Step-by-step explanation:
integers: 11×11÷[-11÷{12-(13-12)}]
Answer:
121+11 divided 37
hope this helped:)
Answer:
-121
Step-by-step explanation:
You can plug it in to a calculator, or use pemdas: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).
Answer these 3 simple questions