Answers
Answer:
12x + 6y = 102
5x - 6y = 34
17x = 136
x = 8
y = 1
Answer:
Step-by-step explanation:
Next time just substitute each of the options for x and y one at a time.
A
Related Questions
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
Answers
For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
Find the slope and the y-intercept of the graph of the linear equation. y= -2x - 1
Answers
Answer:
slope = -2
y-intercept = -1
Step-by-step explanation:
for y = -2x - 1
Using the slope intercept formula y = mx + b, then slope m = -2 and y-intercept is (0,b) or (0,-1)
Y=mx+ c
M=Slope or Gradient
C=Y-intercept
(M) Slope= -2
(C) Y- intercept= -1
Departure: 5:35 a.m.
Arrival: 8:17 p.m.
Answers
Answer: 2:42
Step-by-step explanation:
8:17 - 5:35 = 2:42
you just count the i between numbers
Describe how the data is dispersed in a box plot with the following data set: 25, 36, 21, 30, 20, 32, 38, 19, 36, 31, 26, 33, 27, 18, 24.
AND PLEASE ACTUALLY EXPLAIN/DESCRIBE!
Answers
In a box plot, also known as a box-and-whisker plot, the data is dispersed and represented visually to provide a summary of the distribution and key characteristics of the dataset. Let's describe how the data is dispersed in the box plot for the given data set: 25, 36, 21, 30, 20, 32, 38, 19, 36, 31, 26, 33, 27, 18, 24.
1. Median (Q2): The median represents the middle value of the dataset when arranged in ascending order. In this case, the median is around 27 or 28, as it lies between the values 27 and 30.2. Lower Quartile (Q1): The lower quartile marks the boundary between the lower 25% of the data and the upper 75%. It is located approximately around 22 or 23, as it falls between the values 21 and 24.3. Upper Quartile (Q3): The upper quartile marks the boundary between the lower 75% of the data and the upper 25%. It is located around 34 or 35, as it lies between the values 33 and 36.4. Interquartile Range (IQR): The IQR is the range between the upper and lower quartiles (Q3 - Q1). In this case, the IQR is approximately 12 (35 - 23).5. Whiskers: The whiskers represent the range of the data excluding any outliers. They extend from the lower quartile (Q1) to the minimum value and from the upper quartile (Q3) to the maximum value. However, in some cases, the whiskers can also be defined based on certain criteria, such as 1.5 times the IQR. Outliers, if present, are depicted as individual data points beyond the whiskers.6. Outliers: Outliers are data points that significantly deviate from the rest of the dataset. In this case, there are no clear outliers based on the data provided.7. Box: The box in the box plot spans from the lower quartile (Q1) to the upper quartile (Q3) and represents the middle 50% of the data. In this case, the box spans approximately from 23 to 35.By observing the box plot, we can see that the data is moderately dispersed, with the majority of values concentrated around the median. The range of the data is approximately 20 to 38, with some variability within the dataset.
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♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)
Minimum value: 18
First quartile (Q1): 22
Median: 29
Third quartile (Q3): 36
Maximum value: 38
The box plot is created using these values. A box is drawn from Q1 to Q3 with a line inside the box at the median. Whiskers are drawn from the box to the minimum and maximum values. Any data points beyond the whiskers are plotted as individual points.
In this box plot, the data is dispersed fairly evenly, with no outliers beyond the whiskers. The box is centered around the median, indicating that the data is roughly symmetric. The lower half of the data is slightly more spread out than the upper half, as indicated by the longer whisker on the left side of the box. Overall, the box plot shows that the data is relatively consistent, with no extreme values.
The following diagram models a ratio relationship.
A. Write a part-to-part ratio that compares the number of squares to triangles.
B. Use ratio language to describe this ratio relationship.
I HAVE 3 MINUTES
Answers
Answer:
102.8
Step-by-step explanation:
102.8
Answer: where is the diagram
Step-by-step explanation:
PLEASE HELP ME, LOOK AT THE PICTURE
no wrong answers please :(
Answers
Answer: 1/9
Step-by-step explanation:
There are 3 possibilities of it landing on 7 (greater than 6), is 1/3 alone. Then adding on landing on 5, right after, you have 1/9.
please answer the picture
Answers
Answer:
a and b
Step-by-step explanation:
Answer:
A and B
Step-by-step explanation:
hope this helps
A valley in California has an elevation of feet below sea level. A valley in Arizona has an elevation lower than the one in California. Which of these could be the elevation of the valley in Arizona? 3 feet 0 feet -5 feet -9 feet
Answers
The valley in California has an elevation of feet "below sea level".
Below sea level means below 0 feet, so it'd have -5 feet
The one in Arizona would be lower than it, so the elevation will definitely be -9 feet
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
Reason 2:
Reason 3:
Reason 4:
Answers
Answer:
Step-by-step explanation:
reason 1:
opening of brackets to solve the expression
reason 2:
in multiplication order is followed i.e. the number always lead the variable in the expression
reason 3:
for clarification brackets are added to multiply like terms i.e. numbers with numbers and variable with the variable
reason 4:
the solved and simplified expression is delivered as a result
What is the output value for the following function if the input value is 1?
y = 3 x + 1
5
32
0
4
Answers
Explanation: 3 times 1 is 3 so 3 plus 1 is 4. Y=4
Complete the statement.
If a transversal intersects two parallel lines, then _____ angles are supplementary.
same-side interior
corresponding
acute
alternate interior
Answers
Answer:
Same Side interior
Step-by-step explanation:
Just trust me
Answer:
same-side interior
Step-by-step explanation:
If a transversal intersects two parallel lines, then same-side interior angles are supplementary.
Please help!! (I added a screenshot)
Answers
i am postitive its 40
What is the prime factorization of 51?
Enter the factors from least to greatest.
Answers
Answer: is 3 and 17
Step-by-step explanation:
So, the prime factorization of 51 is 51 = 3 × 17, and the prime factors of 51 are 3 and 17.
Answer:
Step-by-step explanation:
1) Use prime factorization.
3 | 5 1
|______
17
2) Therefore, the prime factors are:
3, 17
Factors of 51
1, 3, 17, and 51
thanks.
A grocery store conducted a survey. It showed that when customers buy less cereal, it does not indicate a change in the amount of milk they purchase. What can we conclude?
A.There is no correlation between amount of cereal bought and amount of milk purchased.
B.There is a correlation between amount of cereal bought and amount of milk purchased. However, there is no causation. This is because there is likely a decrease in the amount of milk purchased with a decrease in the amount of cereal bought.
C.There is a correlation between amount of cereal bought and amount of milk purchased. There may or may not be causation. Further studies would have to be done to determine this.
Answers
Answer:
option a ig.............
Answer: A, there is no correlation between amount of cereal bought and amount of milk purchased.
Step-by-step explanation: It's A because in problem said that when the customers bought less cereal, nothing changed when they bought the milk. So even when the customers bought less cereal, they still bought the same amount of milk. Then, there is no correlation between how much cereal and milk the customers purchase.
Find the difference.
7 1/2 - 6 3/10
A. 13 4/5
B. 1 1/4
C. 1 1/5
D. 1 1/10
Please make sure your answer is 99.9% correct
Answers
Answer:
I'm almost certain it's 1.2
This is the start of the question, thanks again!
Answers
Explanation: the two number problems do not equal the same thing until one of the number problems gets subtracted by a certain amount or adds a certain amount.
20 points to whoever gets these right!! <3
Answers
Answer:
1st one 8/20
Step-by-step explanation:
Nina is selling three types of energy bars at a market stall.
She bought 80 Enerbars at 40p per bar and 180 Grainbars at 30p per bar from her normal supplier.
She was also given 40 Amazebars as a promotion from a new supplier.
Nina sells the bars for £2.25 and manages to sell all the Enerbars and Grainbars but only some Amazebars.
She makes a profit of £553.
How many Amazebars did she sell?
Answers
Answer:
She sold 24 Amazebars.
Step-by-step explanation:
Cost:
80 x 0.40 = 32
180x 0.30 = 54
40 x 0 = 0
Total = 86
Income
80 x 2.25 = 180
180 x 2.25 = 405
X x 2.25 = 2.25x
Total = 585 + 2.25x
How many did she sell:
553 = 585 - 86 + 2.25x
553 = 499 + 2.25x
553 - 499 = 2.25x
54 = 2.25x
54/2.25 = x
24 = x
Order these three values from least to greatest. Explain or show your reasoning.
65% of 80
82% of 50
170% of 30
(Will give brainliest)
Answers
82% of 50
65% of 80
Answer:
82% of 50
170% of 50
65% of 80
Step-by-step explanation:
.82(50)=41
1.7(30)=51
.65(80)=52
Find the area of the trapazoid pls :)
Answers
Step-by-step explanation:
Area= 175ft
I hope this helps
Work below
PLS HELP!!!!!
Brayden conducted a scientific experiment. For a certain time, the temperature of a compound rose 2 2/5 degrees in 1/5 of an hour. How much did the temperature of the compound rise in one hour?
Answers
Answer: 12 degrees or 11 5/5 or 60/5
Step-by-step explanation:
Since the temperature is rising 2 2/5 per 1/5 of an hour we just need to multiply 2 2/5 times 5 because 5/5 would equal the whole hour. In order to multiply easier you can change 2 2/5 to an improper fraction by multiplying the whole number with the denominator and then adding the numerator. Which you should get 12/5 next change 5 to a fraction which would be 5/1. 5 times 12 is 60 and 5 times 1 is 5. You get 60/5 which if divided is 12.
For the number line you just have to find 1/5 and 2 2/5 on it and mark it.
i need help please help
Answers
Answer: it's a trapezoid
Hope this helps!!!
HELP PLEASE 26 POINTS!! please provide an explanation tooo!!!!
Answers
Answer:
B
Step-by-step explanation:
In the case of this distance, trying to imagine 5 x 10^6 is obviously way too ridiculous
The answer is B.
5 kilometers is a reasonable way to describe the distance.
Describing that distance in such tiny units (such as millimeters) is ridiculous. Yes, 5 Km is the same as 5,000,000 mm, but I can't picture what 5,000,000 of anything really looks like.
And we do use scientific notation for distances. The distance from Earth to the Sun is about 149,597,870 kilometers. Most people would state that as 1.5x10^8 Km, using scientific notation.
Tom and Elise went scuba diving while on vacation. Tom went down 17 feet while Elise went down 12 feet, What is the value of the surface of the water?
Answers
On a number line you can see -19 is closer to 0 than -25, since 0 feet down is the surface of the water, Elise will be closer.
A large box of cereal has 26 ounces and costs $5.20. What is the unit rate price per ounce for the large box of cereal?
Answers
$0.20
Step-by-step explanation:Hey! Let's help you with your question here!
So, let's start with what we are trying to find and that's the unit rate price per ounce of a large box of cereal. Now, let's focus on what we're given.
Information we know:The large box of cereal is 26 ounces.The cost of the box of cereal is $5.20Explanation:Alright! We've figured out what we know and what we need to find! Now, we can start figuring out how to solve it! Now how do we do that? Well in order to figure out the unit rate price, we need to take the price and divide it by the total quantity. In a formula, it looks like this:
\(Unit Rate=\frac{cost}{quantity}\)
If we plug everything into the formula, it would look like this:
\(UnitRate=\frac{5.20}{26}\)
\(UnitRate=0.20\)
Conclusion:Therefore, we can conclude that the unit rate price per ounce for the large box of cereal is $0.20 per ounce.
Learn more about unit rate price per ounce at https://brainly.com/question/154858
A bag contains 8 black marbles, 16 white marbles, 14 red marbles, and 10 green marbles. A marble is drawn at random from the bag.
What is the probability that the marble drawn will not be white?
A. 1/3
B. 2/3
C. 3/4
D. 15/ 16
Answers
Answer:
B. 2/3
Step-by-step explanation:
Total marbles: 48
White marbles: 16
48-16=32
The fraction is: 32/48 simplified is 2/3
We have a total of 48 marbles. 16 of them are white.
48-16=32
32/48 simplifies to 2/3
triangle abc has coordinates a(2,8),b(-1,5),and c(4,-4).triangle abc is dilated with the origin as the center of dilation using the algebraic representation (x,y)->(0.5x,0.5y).which of the following will not be the coordinates of a vertex of the dilation?
Answers
Answer:
The coordinates would dilate to a(1,4),b(-.5,2.5), and c(2,-2) so the answer would have to NOT be one of these coordinates.
Step-by-step explanation:
I multiplied each coordinate by .5 to find the new ones.
PLEASE HELP. URGENT 8TH GRADE MATH QUESTION. GIVING AS MANY POINTS AS I CAN TO THE CORRECT ANSWER. THANK YOU YA'LL ARE LIFE SAVERS
Answers
Z=98
I’m bad at explaining so if you needed an explanation I’m sorry!!
Because z and 82 angles are internal angles
And total of the two inner corners 180
Y =82+32 =114
Y=114 multiply 5=22.8
Please solve QUICKLY
Answers
Answer:
C
Step-by-step explanation:
It isn't B because the point does not start at 600 and it is not A because it shows the entire decrease of the mass in one millennium. The correct answer is c.
A bucket that holds 2 1/4 gallons of water is being used to fill a tub that can hold 10 1/2
gallons. How many buckets will be needed to fill the tub? (TESt QUESTION)
Answers
The answer is 6 1/2 buckets.
What is did was turn the fractions into decimals to make it easier.
So the ratio is 5.25 gallons per bucket. I divided 34 1/8 by 5 1/4 in decimal form (34.125/5.25) and got 6.5
So therefore, the answer is 6 1/2 buckets of water is needed ti fill up the tub.
Answer:
I am pretty sure the answer would be 4 and 2/3
Step-by-step explanation: