The inverse variation of the STEM club implies that as the number of students increases, the amount reduces
The number of students is 35
How to determine the number of students?An inverse variation is represented as:
[tex]k = xy[/tex]
Where:
k represents the proportionality constant.
x represents the number of students, and y represents the amount
So, we have:
[tex]x_1 * y_1 = x_2 * y_2[/tex]
This gives
[tex]25 * 17 = x_2 * 12[/tex]
Evaluate the product
[tex]425 = x_2 * 12[/tex]
Divide both sides by 12
[tex]x_2 = 35[/tex]
Hence, the number of students is 35
Read more about inverse variations at:
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Marcel and Floyd are playing games at an arcade. Marcel has $8.25 and is only playing $0.25 games. Floyd has $9.75 and is only playing $0.75 games. Jorge wants to find the number of games after which Marcel and Floyd will have the same amount of money remaining. Jorge's work is shown below.
Given that,
Marcel has $8.25 and is only playing $0.25 games. Floyd has $9.75 and is only playing $0.75 games.
Jorge wants to find the number of games after which Marcel and Floyd will have the same amount of money remaining.
The attached figure shows the equation that Jorge had :
8.25-0.25x=9.75-0.75x
Subtract 9.75 to both sides
8.25-0.25x-9.75=9.75-0.75x-9.75
-1.5-0.25x=-0.75x
Add 0.25x to the both sides,
-1.5-0.25x+0.25x=-0.75x+0.25x
-1.5=-0.5x
⇒ x = 3
Jorge is incorrect at step 2 where he taken -0.25x to the RHS such that -0.75x+0.25x, he get 0.5x instead of (-0.5x). Hence, From Step 1 to Step 2, Jorge did not add 0.25x correctly to both sides.
Answer: the answer is B
Step-by-step explanation: I took the quiz on edgunity(ik i spelled it wrong-) and got this question right.
Help me!
Marck is 3 years older than his step sister and she is 3 years old. Hold much older is Marck?
Answer:
Uhhhh are you sure this is high school level?
Step-by-step explanation: “Marck is 3 years older” “how much older is Marck?” “3”
Giving out high rates , likes , and Brainly
Answer:
16
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PLEASEEEE HELP
Select the letter of the correct answer.
Suppose this Article could have a different title. The best one would be
A G-0-0-0-al! Youth Soccer Player Scores for Trees
B
Water Warrior Demands Action From World Leaders
с
Do Something! Global Climate Protests Encourage Youth Activism
Youth Activists Take Action to Help Heal the Planet
Answer:
C
Step-by-step explanation:
Do something global climate protest encourage youth activism
Find the surface area of each rectangular prism
Length = 12.7
Height = 4.3
Width = 8.1
Answer:
length =12.7
Breadth=4.
Width=8.1
here,
area = 384.62
The president of the math club is conducting a survey to see where the twelfth-grade class wants to go on their field trip. Instead of asking the whole class, she surveys only the twelfth-grade members of the math club. She records their choices and plans to present the results to the school principal. What type of sampling did she use? systematic random sampling simple random sampling stratified sampling convenience sampling.
The type of sampling that the teacher used is of the type: Option D: Convenience sampling
What is simple random sampling?If the sampling is done from the population randomly, without any other rule, then such sampling is called simple random sampling. Items are selected in a fixed size, all randomly.
What is stratified sampling?Sampling which is done by taking the main population divided in categories(called strata), then such sampling from stratas (sub-parts of the population) is called stratified sampling.
What is systematic random sampling?In this type of sampling, starting of the sampling is done randomly, but then rest of the samples are collected by an order. Like for example, first point is selected randomly, then all points are selected that they are equidistant from each other in the population.
What is convenience sampling?The word "convenience" summarizes this sampling. It is done in a way that those values from population are sampled which are in convenience with the researcher. Like if some random picking is to be done from beads spread on the ground, then the researcher picking those beads which are closer to him.
So, the math teacher took the sample from a specific part of the whole twelfth class. That's a strata. But sampling was done "only" from 1 strata, which is useless as field trip's data should be taken from other parts of the population too where students might be interested to go for field trip. Thus, its a wrong method of sampling.
That's more of like convenience sampling instead of stratified, where the teacher preferred convenience instead of proper sampling (as the sampling she did is not showing any proper ideology that she might've followed).
Thus, the type of sampling that the teacher used is of the type: Option D: Convenience sampling
Learn more about sampling techniques here:
https://brainly.com/question/24842573
Answer:
D. Convenience sampling
Step-by-step explanation:
2022
could someone please give me the correct answer? id appreciate it
Answer: A = 198.6cm²
Step-by-step explanation: The figure includes two semi circles on both ends. These can be solved as a whole circle with a diameter of 10cm because each semi circle is 5cm.
r = 10/2= 5cm
Area of circle:
A = πr²
A = 3.142*5²
A = 3.142*25
A = 78.55
A = 78.6cm²
The remaining section of the shape is a rectangle with a length of 12cm.
To get this, you subtract 10 from 22 because each semi circle is 5cm which adds up to 10cm.
The rectangle has a width of 10cm.
Area of rectangle:
A = lw
A = 12*10 = 120cm²
The total area of the shape:
A = 120 + 78.6
A = 198.6cm²
Find m ABC.
A
94°
D
С
B
108°
Answer: 79 degrees
Step-by-step explanation:
Answer:
79°
Step-by-step explanation:
3. Choose the expressions that do not represent the total area of the recit
5t+4t
t+5+4
9t
4x5xt
1(5+4)
Answer:
t+5+4
4x5xt
1(5+4)
Step-by-step explanation:
Area of the rectangle = 5t + 4t = 9t
Find the radius. Show your work.
Answer:
Step-by-step explanation:
(a) At swim practice, Lucas swam n laps, took a break, and then swam c more laps. Write the expression that represents the total number of laps that Lucas swam. List the keywords and the operations, write the math expression and provide explanation of how you solved.
(b) Sadie brought 9 marbles to the park and put them together with Juliana’s u marbles. They then decide to share them equally with 10 friends. List the keywords and the operations, write the math expression and provide explanation of how you solved.
(c)Gerald ran m miles yesterday. Amanda ran 2 miles less than half the miles that Gerald ran. Write an expression that represents the number of miles that Amanda ran. List the keywords and the operations, write the math expression and provide explanation of how you solved.
Answer:
a is C+N=N+C
Step-by-step explanation: NOT TO SURE HOPE THIS HELPED
1. Mrs. Galicia is building a chicken farm in 2021 with an initial population of 3750 chickens. The farm grows at a rate of 2.15% annually. (a) Use the exponential growth model to write an equation that estimates the population t years after 2021. (b) Estimate the population of the town in 2036.
show plug in step before using calculator Answer:
The population of the chicken after 15 years in 2036 will be 5177.
What is an exponential growth model?The exponential growth model is given by the equation, [tex]y=y_oe^{rt}[/tex], where y is the population after t years, y₀ is the initial population, r is the rate of growth, and t is the time.
As it is given that the initial chicken population in the year 2021 is 3750, while the rate at which the population is increasing is 2.15% annually.
A.) The exponential growth model to write an equation that estimates the population t years after 2021.
The exponential growth model can be written as,
[tex]y=y_oe^{rt}\\\\y=3750e^{0.0215t}[/tex]
B.) The population of the town in 2036,
As the population is increasing for the next 15 years(2036-2021). Therefore, The population of the town in 2036 can be written as,
[tex]y=3750e^{0.0215t}\\\\y=3750e^{0.0215\times 15}\\\\y= 5177.1558\approx 5177[/tex]
Hence, the population of the chicken after 15 years in 2036 will be 5177.
Learn more about Exponential growth model:
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Which of the following is equal to -11?
Answer:
-11
(-11)
-10 + -1
-9 + -2
-8 + -3
-7 + -4
Answer:
(3*(47/53*69^4)^(3/3)×x⁵/(9-56)/x)×0 - 11 = -11
im smart....
Arrange the children in ascending order of their weights.
Nayana : 28.76 kg
Aman:32.63 kg
Asif: 32.36 kg
Alka: 31.05 kg
Answer:
Nayana: 28.76 kgAlka: 31.05 kgAman: 32.63 kgAsif: 32.63 kgStep-by-step explanation: Ascending means increasing, so arrange the weights from the smallest to the biggest.
The weights are all in kilograms (kg) so no conversion is needed. Just arrange the weights by the numbers, 28.76 is the smallest here, and 32.63 is the biggest number, and it is repeated, so in that case the order doesn't matter.
Aman can come before Asif and vice versa since they have the same weights.
Helppppp! What is a cube root?
a
a number which produces a specified quantity when multiplied by itself.
b
A 6 sided shape
c
a quadrilateral with a line of symmetry bisecting one pair of opposite sides
d
a special value that, when used in a multiplication three times, gives that number.
Answer:
your answer is d. - A special value that when used in a multiplication three times gives that number
Step-by-step explanation:
Hope this helps you
Do mark me as brainliest
Complete the expression equivalent to 24r + 36, using the greatest common factor (GCF) of the two terms
Answer:
Amusement parks, penny arcades, dance halls, and other commercial amusements flourished. As early as 1910, when there were 10,000 movie theaters, the movies had become the nation's most popular form of commercial entertainment.
100 POINTS!!!
If you have a line perpendicular to the line given by the equation
, what would be the slope of the perpendicular line?
EXPLAIN YOUR ANSWER
Answer:
5/4
Step-by-step explanation:
y intercept does not matter
formula is -1/slope
this works because making it negative reflects it over the y axis, and the reciprocal adjusts the angle
The line L passes through the points (1,2) and (-4,-4)
Find the gradient of line L
the slope goes by several names
• average rate of change
• rate of change
• deltaY over deltaX
• Δy over Δx
• rise over run
• gradient
• constant of proportionality
however, is the same cat wearing different costumes.
[tex](\stackrel{x_1}{1}~,~\stackrel{y_1}{2})\qquad (\stackrel{x_2}{-4}~,~\stackrel{y_2}{-4}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{-4}-\stackrel{y1}{2}}}{\underset{run} {\underset{x_2}{-4}-\underset{x_1}{1}}}\implies \cfrac{-6}{-5}\implies \cfrac{6}{5}[/tex]
Which values are outliers? 6. 1, 3. 9, 6. 4, 10. 6, 4. 4, 4. 5, 1. 6, 11. 2, 0. 8, 3. 9, 6. 5 Select Outlier or Not Outlier for each data point.
Answer:
10 and 11
Step-by-step explanation:
An outlier is a number that is much larger or smaller than the general populous of numbers. For example, if there was a dot plot with dots clustered at 2, 3, and 5, but there was one or two dots around 10, then 10 would be considered an outlier.Let's put the numbers in order to see easier which numbers are outliers. I will not copy down repeating numbers.0, 1, 2, 3, 4, 5, 6, 10, 11.10 and 11 are isolated <3If I am incorrect in my reasoning, please let me know so that I can plan better for my future answers. Have an amazing day.
I need some help with this one please and thanks.
Answer:
Volume = 7,241.142 ft^3
Step-by-step explanation:
4 × 22 ×12×12×123. 7
506887
7,241.14285714I hope it will be helpfulMULTIPLE CHOICE QUESTION
Which coordinate of the IMAGE should be the OPPOSITE when it is reflected over the X-AXIS?
Y-CORDINATE or X-COORDINATE?
Answer:
(-4, 5)
Step-by-step explanation:
x will never change if reflected over it. but y will be negative. also what do you mean by y coordinate or x coordinate?
Answer:
-4,5
Step-by-step explanation:
What is the volume of the prism?
Answer:
Your answer is 13 1/8
Step-by-step explanation:
V = lwh
V = 1 1/2 x 3 1/2 x 2 1/2
V = 13 1/8
HELP!
What value of p makes the equation true?
What is 4573 - 3892?
Answer:
The answer is 681.
681
would be your answer when subtracting 4573 - 3892
The sides of a rectangle are in the sides of a rectangle are in the ratio 7:3. The perimeter of the rectangle is 40cm. Find the area of the rectangle
Answer:
28 cm and 12 cm
Step-by-step explanation:
I didn't use math for this one I just used logic lol
Multiply 7 by 4 and 3 by 4, you get 28 and 12, 28+12=40
I'm just asking and if i'm wrong pls show me the correct way so to find the surface area of a cylinder it is
find the circumference multiply it by two and then multiply it by the height???
i tried watching videos and i- just help :/
Answer:
C (Circumference) = π r²h
V (Volume) = π r²h
solve pls brainliest
What is the domain of the following relation?
{(-3, 3), (1, 1), (0, -2), (1, -4), (5, -1)}
-3,0,1,5
Step-by-step explanation:
in coordinates, x is domain and y is range. however if u have 2 or more of a number of x, just put it once. for example
(2,5) (5,8) (1,4) (2,3) (1,2)
domain: 1, 2, 5
range: 2, 3, 4, 5, 8
hope this helps
Y = -3x + 7
Y = 8x - 6
30x-5y = 25
20x + 10y = 90
-3x + 3y = 18
Answers:
Positive slopes:
Y = 8x - 6 with a slope of 8.
30x - 5y = 25 with a slope of 6.
Negative slopes:
-3x + 3y = 18 with a slope of -1.
Y = -3x + 7 with a slope of -3.
20x + 10y = 90 with a slope of -2.
Step-by-step explanation: Have a great day! :)
Answer:
Positive Slopes
2) y = 8x - 6
3) y = 6x - 5
5) y = 1x + 6
Negative Slopes
1) y = -3x + 7
4) y = -2x + 9
(Bold numbers indicate the slopes)
Step-by-step explanation:
y = mx + b is the slope intercept form of writing the equation of a straight line. In the equation 'y = mx + b', 'b' is the point, where the line intersects the 'y axis' and 'm' denotes the slope of the line. The slope or gradient of a line describes how steep a line is.
y = mx + b
m ~ slope of the line
b ~ intercept of the line
[tex]3) \: \: 30x - 5y = 25 \\ 30x - 25 = 5y \\ \frac{30x - 25}{5} = \frac{5y}{5} \\ 6x - 5 = y \\ \\ y = 6x - 5[/tex]
[tex]4) \: \: 20x + 10y = 90 \\ 10y = - 20x + 90 \\ \frac{10y}{10} = \frac{ - 20x + 90}{10} \\ y = - 2x + 9 \\ [/tex]
[tex] 5) \: \: - 3x + 3y = 18 \\ 3y = 18 + 3x \\ \frac{3y}{3} = \frac{18 + 3x}{3} \\ y = 6 + x \\ \\ y = x + 6[/tex]
Que pase por el punto ( 2 , 3 ) y es perpendicular a la recta x − 4 y + 1 = 0
Answer:
y = -4x+11
Step-by-step explanation:
x − 4 y + 1 = 0
x+1 = 4y
4y = x+1
y = 1/4x+1/4
pendiente de una recta perpendicular es el recíproco negativo
negative reciprocal 1/4x is -4x
y = -4x+1/4
Con la nueva pendiente, use la forma de intersección de la pendiente y el punto para calcular la intersección usando (2,3) :
y = mx + b or y = -4x+b
3 = -4(2) + b
3 = -8 + b
11 = b
b = 11
y = -4x+11
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