Answer:
1. x = -12+y / 5 , y = -12-5x
2. x = 4 - y , y = 4 - x
3. x = -11 - 9y / 6 , y = 11 + 6x / 9
( for the numbers in fractions such as the x value for #1 and x & y value for #3, put the negative sign in front of the fraction, not the number okay? )
Step-by-step explanation:
-5x - y = 12---> -5x - y = 12 -5x - y = 12
= -5x - y = 12 = +5x +5x
+y +y ---------------------
--------------------- -y = 12 + 5x
-5x = 12 + y /-1 /-1
/-5 /-5 ----------------------
--------------------- y = -12-5x
x = -12+y / 5
-------------------------------------------------------------------------------------------
x + y = 4---> x + y = 4 x + y = 4
= -y -y = -x -x
--------------------- ----------------
x = 4 - y y = 4 - x
--------------------------------------------------------------------------------------------
-6x + 9y = 11-----> -6x + 9y = 11 -6x + 9y = 11
= -9y -9y = +6x +6x
------------------------------ ------------------------
-6x = 11 - 9y 9y = 11 + 6x
/-6 /-6 /9 /9
------------------------------- --------------------------
x = -11 - 9y / 6 y = 11 + 6x / 9
The price of Pepsi stock was $0.65 in 1981 and $27.56 in 2011. What was the average rate of change for the stock per year
from 1981 to 2011 rounded to the nearest hundredth?
William bought snacks for his team's practice. He bought a bag of oranges for $3.02 and a 20-pack of juice bottles. The total cost before tax was $22.02. Write and solve an equation which can be used to determine jj, how much each bottle of juice costs?
Answer:
.95
Step-by-step explanation:
JJ = (22.02 - 3.02) / 20
(22.02 - 3.02) / 20
19 / 20= $0.95
write 7/50 as a percentage
Answer:
14%
Step-by-step explanation:
To change a fraction to a percentage multiply fraction by 100%, that is
[tex]\frac{7}{50}[/tex] × 100% = 7 × 2% = 14%
Step-by-step explanation:
7/50 have to times 100% to get the percentage so,
Working:
7/50 x 100%
= 14%
Alyssa bought 2 packs of football cards for $4.52 each, and a deck of Digimon Cards
for $11.47 with two $20 bills. Alyssa found $7.72 in her pocket. How much change
did Alyssa get?
Hello :D
2 x $4.52 = $9.04
$9.04 + $11.47 = $20.51
2 x $20 = $40.00
$40.00 - $20.51 = $19.49
With change:
$40.00 + $7.72 = $47.72
$47.72 - $20.51 = $27.21
2. Is the expression 2 • 4' equal to the expression 8"? Explain your answer.
If the geometric mean of a and 34 is 6 sqrt(17) find the value of a
Using the geometric mean concept, it is found that the value of a is 18.
----------------------
The geometric mean, of a data-set of n elements, [tex](n_1, n_2, ..., n_n)[/tex], is given by:
[tex]G = \sqrt[n]{n_1 \times n_2 \times ... \times n_n}[/tex]
That is, the nth root of the multiplication of all elements.
----------------------
In this question:
Two elements(n = 2), a and 34.[tex]G = 6\sqrt{17}[/tex]Thus:
[tex]\sqrt{34a} = 6\sqrt{17}[/tex]
We find the square of each side, so:
[tex](\sqrt{34a})^2 = (6\sqrt{17})^2[/tex]
[tex]34a = 36\times17[/tex]
Simplifying both sides by 17:
[tex]2a = 36[/tex]
[tex]a = \frac{36}{2}[/tex]
[tex]a = 18[/tex]
The value of a is 18.
A similar example is given at https://brainly.com/question/15010240
Help w Geometry !!!!
Answer:
[tex]x=21[/tex]
Step-by-step explanation:
Hi there!
We're given that angle POR measures 90 degrees. Ray OQ bisects it, meaning it splits it into two equal angles.
90 ÷ 2 = 45.
This means that each of those individual angles are 45 degrees. This means:
[tex]2x+3=45[/tex]
Solve:
[tex]2x=42\\x=21[/tex]
Therefore, x=21.
I hope this helps!
The second side of a triangle is 3 times the first side. The third side of a triangle is 2 1/2 times the first side. If the perimeter of the triangle is 65 feet, find the length of each side.
Answer:
F=first side; S=second side=3F; T=third side=2.5F
.
F+S+T=60ft
F+3F+2.5F=60ft
6.5F=60ft
F=9.23ft
S=3F=3(9.23ft)=27.69ft.
T=2.5F=2.5(9.23)=23.08ft
.
ANSWER First side=9.23ft; Second side=27.69ft; Third side=23.08ft
Step-by-step explanation:
2.1
Construct an independent Equilateral triangle as follows:
10 cm side with vertices ABC.
Step-by-step explanation:
First draw a straight line
then mark a point A on the line
after take the compass and take 10 cm size
then keep the compass on A and draw the arc its B
then keep the point on B and draw arc to A
next keep the compass on A draw arc on same length
to upside to line do same thing from point B to upside
mark a point meeting borth arcs its c
all ABC triangle
Can somebody help me solve this? Don’t just give me the answer, tell me how to get the answer to problems like these. I forgot what to do on these
Answer:
it would be 8^12
Step-by-step explanation:
when exponents are dividing eachother and the bases are the same it would be like
[tex] \frac{ {x}^{3} }{x} [/tex]
so it would turn into x^3-1 then the answer would be x^2
add brackets to make this calculation correct 3+4×6-2=28
Answer:
3+4×(6-2)=28
Step-by-step explanation:
7×4=28
Answer:
3+4×6-2=28
3+4×(6-2)=28
7×4=28. answer.
how to write a book report plz help???
Answer:
below
Step-by-step explanation:
In short, a book report is an essay that contains what you read and learned from reading a book. For example, you would write a book report in the following sequence:
What ocurred in the beginning, middle, and end.What you learned from reading it.What you enjoyed about it.Best of Luck!
can u please help me with this one ASAP!
Answer:
The standard form of a quadratic equation is ax2+bx+c=0, where a,b and c are real numbers and a≠0.
Answer:
The quadratic function f(x) = a(x - h)2 + k, a not equal to zero, is said to be in standard form.
A recipe for lemonade calls for 14 lemons for every 2 cups of sugar. If you have 84 lemons to use for making lemonade, how many cups of sugar will you need?
Answer: about 15 because 14x7=78 and 2 cups for every 14 so 7x2 is 14 and there is 6 remaining so 15 is about right
thank biggie not me
12 cups of sugar needed.
What is unitary method?The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Given:
for 14 lemons= 2 cups of sugar need.
for 1 lemon= 2/14 cups of sugar need.
Now, for 84 lemons
=84*2/14
=6*2
=12 cups of sugar need.
Hence, 12 cups of sugar needed.
Learn more about unitary method here:
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Which of the following numbers is irrational?
OA) -7.8 repeating
OB) 25
OC) 25.8125
OD 0.025
Answer:
OA) -7.8 repeating... is irrational number
Step-by-step explanation:
I. Repeating Decimal is on of irrational number
II. Pie.value is also irrational number, but in computer science, we can find pie value with the quantum computer.
2. The area of Mr. Bodus rectangular farm is 5500 cm², its width is 11 m find the length of the farm
Answer:
5 m
Step-by-step explanation:
We convert m to cm by adding 2 zeroes. So 11m = 1100 cm
A = l*w
where l = length and w = width
so w = 11 m
we are looking for l (length)
so set up an equation,
5500 = 11 * l
and divide by 11 on both sides
5500 / 11 = l = 500 cm
Check: 11 * 500 = 5500
We can remove two zeroes to get the value in meters.
500 cm = 5 m
How do u do (number 30)... please list step by step...
Answer:
the screen is really blurry sorry bout that
Step-by-step explanation:
5
Select the correct answer from each drop-down menu.
Amélie runs a bakery. She wants to find out whether her cake sales are affected by the weather conditions. She recorded the daily
temperature and the number of cakes she sold on different days of the year. The table shows the data she gathered.
Daily Temperature (°F) Cakes Sold
42
39
45
52
48
31
54
61
59
72
62
35
64
61
65
34
67
58
75
45
84
24
The correlation coefficient is close to
Based on this information, we can conclude that Amélie's cake sales are
affected by the daily temperature,
Reset
Next
The correct answer is : -0.7
A correlation coefficient is a statistical indicator of how well changes in one variable's value predict changes in another. There is a common tendency to assume that a change in one variable must be the result of a change in the other when the fluctuation of one variable predicts a similar fluctuation in another variable with high accuracy.
Correlation does not necessarily indicate cause, though. For instance, there might be an unidentified factor that has a similar impact on both variables. When it comes to consumer data patterns, being able to distinguish between correlation and causation can be useful and provide insightful information. In the context of marketing, the beer and diapers example is frequently used to illustrate this.
The correlation coefficient is close to: -0.7 (negative because there is an inverse relationship)
Based on this information, we can conclude that Amélie's cake sales are affected by the daily temperature.
Therefore, the final answer is : -0.7.
To know more about correlation visit : https://brainly.com/question/15690353
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PLz answer this is important
The answer is in the photo
g(x) = –2x – 9 What is g(–7)? A. 5 B. –1 C. –5 D. –23
Answer:
D. -23
Step-by-step explanation:
The question wants you to plug in the -7 into the equation. So in this case it wants you to plug the -7 in so it looks like this:
-2(-7)-9
Now it's just simplify which would be easy. Follow PEMDAS(parenthesis, exponents, multiplication, division, addition, subtraction). Do the multiplication first so you get -14-9 and then you'll get -23.
Simplify: 32 - [90-5{9-(14-12)} ] ÷ 5.
Answer:
26 [tex]\frac{1}{5}[/tex]
Step-by-step explanation:
Sequence A counts down from 46 by 7: 46, 39, 32 and so on. Sequence B counts down from one number (not 46) by another number (not 7). In sequence B, the second number is 35, the sixth number is 23, and the sequence ends with the first single-digit number that it comes to. how many numbers are in the sequence B
Answer:
Step-by-step explanation:
Sequence is geometric.
[tex]\\u_2=35=u_1+r\\u_6=23=u_1+5*r\\\\u_6-u_2=23-35=-12=u_1+5r-(u_1+r)=4r\\r=-3\\u_1=u_2-r=35-(-3)=38\\\\\text{Let say n the number or numbers in the sequence}\\\\u_n=38+(n-1)*(-3) <10\\38-3n+3 < 10\\41-10 <3n\\n > \frac{31}{3} \\n > 10\\\\u_n=38+(n-1)*(-3) > 0\\\\38-3n+3 >0\\41 >3n\\\\n < \frac{41}{3} \\n< 13.66666\\n < 14\\Possible\ value\ of \ n:\ 11;12;13\\[/tex]
Last term is 8; 5; 2
Numbers of sequence B= 11 or 12 or 13
One third of a herd of animals are grazing in the forest and two fifths of the remaining are
resting nearby a pond. The remaining six are drinking water from the pond. Find the number of
animals in the herd.
Please help fast someone
Answer:
100 but I am not sure I guess it's 100
Answer:
15
Step-by-step explanation:if you make the donminater the same on all three equations you get 15 and 6 is drinking water so minus 6 that 9 2/5 are resting by a nearby pond so minus 6 and 1/3 i grazing the forest so minus 3 and you get zero so the answer is 15
Simplify: 6 × 9 ÷ 3 − 4 × 5 ÷ 2
A) 4
B) 8
C) 10
D) 11
Answer:
[tex]b)8[/tex]
is the answer it's was helpful to you
Answer:
B ) 8
Is the answer have a great day
In a mathematics class, half of the students scored 40 on an achievement test. With the exception of a few students who scored 80, the remaining students scored 58. Which of the following statements is true about the distribution of scores?
A. The mean is greater than the median.
B. The mean and the median are the same.
C. The mean is less than the median.
D. The mean is less than the mode.
Answer:
C. the mean is less than the median.
Step-by-step explanation:
hope this helps
5(n-7)=2(n+14) with steps
Answer:n =21
Step-by-step explanation:
Name 4 collinear points
Answer:
B) H, N, K, I
Step-by-step explanation:
Collinear points are points that are on the same line. Therefore, the answer is B.
The points H, N, K, and I are collinear which is the correct answer that would be an option (B).
What are the collinear points and the coplanar?Collinear points are defined as points that are along a straight line represented by a collinear. Because a straight line may be drawn continuously between any two points, they are always collinear. There can be a collinear relationship from three or more points, although it is not necessary.
A group of points that are coplanar, or a planar surface that extends endlessly in all directions, are all located on the same plane. Four or more points may or may not be coplanar, however, any two or three points are always coplanar.
We have given a line and a planar surface with points H, N, K, I, M, N, O, J, K, and L.
At the line, points H, N, K, and I are collinear.
Hence, the points H, N, K, and I are collinear which is the correct answer that would be an option (B).
Learn more about the collinear points and the coplanar here:
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A line with a slope of 1 passes through the point (1,6). what is its equation in slope-intercept form
pls help me with this question. plsss
Answer:
it has been proved it was quite difficult at statement no 4 and 5. but it has been proved.
if got any mistake and any problem regarding this question then comment it .
hope this helped you☺️
please i need helppp
Answer:
x=50°
Step-by-step explanation:
x+3°+x+20°+x+7°=180°
or,3x+30°=180°
or,3x=150°
or,x=50°
Answer:
50
Step-by-step explanation:
→ First add all the angles together as angles on a straight line add to 180°
x + 3 + x + 20 + x + 7 = 180
→ Simplify
3x + 30 = 180
→ Minus 30 from both sides
3x = 150
→ Divide both sides by 3
x = 50