This box plot represents the grades on an 8th grade math test.
If a passing grade is 70 or above, what percentage of the students failed the test?
A.
15%
B.
75%
C.
50%
D.
25%
Answers
Related Questions
A survey is taken at a mall in Westingbrook. The first 75 people who entered the mall were asked about their favorite restaurant in the food court. What is true about this situation?
The population is the first 75 people at the mall, and the sample is the total number of people who go to the mall.
The population is the total number of people who go to the mall, and the sample is the first 75 people at the mall.
The population is the number of people who go to the mall, and the sample is the number of people in the town of Westingbrook.
The population is the number of people in the town of Westingbrook, and the sample is the number of people who go to the mall.
Answers
Answer: B (population is total number of people who go to the mall, and sample is first 75 people at the mall)
Step-by-step explanation:
The question is only talking about the people who go to the mall (population), but the sample is specifically the first 75 people. This is because the survey was only asked to these random 75, so it is the sample.
Which expression is equivalent to 11 + 2 * 32?
Answers
Answer:
C) 3 x 5^2
Step-by-step explanation:
Both equal 75.
Hope this helps! Pls give brainliest!
Determine the line of reflection.
Reflection across x = 3
Reflection across y = 3
Reflection across the x-axis
Reflection across the y-axis
Answers
- Reflection across x = 3 is a reflection across a vertical line passing through x = 3.
- Reflection across y = 3 is a reflection across a horizontal line passing through y = 3.
- Reflection across the x-axis is a reflection across the horizontal line at y = 0.
- Reflection across the y-axis is a reflection across the vertical line at x = 0.
Therefore, to determine the line of reflection, we need to know which axis the reflection is occurring across. If the reflection is across x = 3, the line of reflection is the vertical line passing through x = 3. If the reflection is across y = 3, the line of reflection is the horizontal line passing through y = 3. If the reflection is across the x-axis, the line of reflection is the horizontal line at y = 0. If the reflection is across the y-axis, the line of reflection is the vertical line at x = 0.
Answer:
A) Reflection across x = 3----------------------------------
The line of reflection passes through the midpoint of the segment connecting the corresponding points.
Taking points C and C'. Both have same y-coordinate, hence we are taking their x-coordinates as endpoints.
Finding the x-coordinate of midpoint of CC':
x = (1 + 5)/2x = 6/2x = 3Hence reflection line is x = 3.
Helppp Mee T-T
Shaquana bought stock in a company two years ago that was worth x dollars. During the first year that she owned the stock, it increased by 37%. During the second year, the value of the stock decreased by 7%. Write an expression in terms of x that represent the value of the stock after the two years have passed.
Answers
Answer:
1.27x
Step-by-step explanation:
We can use the following formula to calculate the value of the stock after two years:
(1+0.37)(1 − 0.07)x
(1+0.37)(1 -0.07) x = 1.27x
The expression in terms of x that represents the value of the stock after the two years have passed is 1.27x.
I need help with this IXL problem ASAP the whole IXL is due today!!!
Answers
The probability of rolling a 6 and then rolling a 4 is 1/36.
To find the probability of rolling a 6 and then rolling a 4 when rolling a six-sided die two times, we need to consider each roll independently and then multiply the probabilities together.
The probability of rolling a 6 on a fair six-sided die is 1/6 since there are six equally likely outcomes, and only one of them is a 6.
Similarly, the probability of rolling a 4 on the same die is also 1/6.
Since the two rolls are independent events, the probability of both events occurring is the product of their individual probabilities.
The probability of rolling a 6 and then rolling a 4 is:
(1/6) × (1/6) = 1/36
Out of all the possible outcomes when rolling a six-sided die two times, there is only one outcome where the first roll is a 6 and the second roll is a 4.
The probability of this specific sequence occurring is 1 out of 36 possible outcomes, resulting in a probability of 1/36.
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Simple math, earn points!
Answers
Answer:
$7000
Step-by-step explanation:
This problem seems scary at first sight, but don't be intimidated. It is actually pretty simple.
The column of equations (starting with 0.1d) at the right of T(d) is a list of option based on d, the taxable income. If d is less than or equal to (≤) 9875, than the equation is T(d) = 0.1d.
It shows that Noam has 90000 dollars for d, or the taxable income, and Betty has 120000 dollars.
Now, let's find the equations by plugging in 90,000 for d first.
90,000 is greater than 85, 526 and less than 163,300 (85, 526 ≤ 90,000 ≤ 163300).
Then we plug in 120,000 dollar to find the corresponding equation.
120000 is greater than 85, 526 and less than 163, 300 (85, 526 ≤ 120,000 ≤ 163300).
So the chosen equation is:
T(d) = .24( d -85525) + 14605.5
Plug in the Noam's number for d
T(d) = .24(90,000 - 85, 525) + 14, 605.5
T(d) = .24(4475) + 14,605.5
T(d) = 1074 + 14,605.5
T(d) = 15, 679.5
Now Plug in Betty's number for d
T(d) = .24 (120,000 - 85, 525) +14, 605.5
T(d) = .24( 34475) + 14, 605.5
T(d) = 8274 + 14, 605.5
T(d) = 22, 879.5
We are finding how much more tax does Betty pay, so we subtract 15, 679.5 from 22, 879.5.
22, 879.5 - 15, 679.5 = 7200
Betty pays $7000 more tax than Noam does.
What are the common fatrs of and 16
Answers
Answer:
Factors of 5: 1, 5
Factors of 16: 1, 2, 4, 8, 16
1 is the only common factor of 5 and 16.
Please help me! will give brainiest! Look at the question below ( PDF or PICTURE)
Answers
Answer:the first third and fourth option r right
Step-by-step explanation:
help me please i dont know this!!!!!
Answers
ummmm idek.................
Answers
Answer:
12/3
Step-by-step explanation:
Herman's Burgers cooks its burgers either well done or medium. Last night, the restaurant served 5 well-done burgers and 15 medium burgers. What percentage of the burgers served were well done?
Write your answer using a percent sign (%).
Answers
Answer:
25% of well done burgers
Help!!
Use the diagram of the equilateral triangle shown below to answer the following questions. Show the work that leads to your answers. a. What is the perimeter of the triangle? b. What is the height, ℎ mm, of the equilateral triangle? Write an exact answer using a square root and an approximate answer rounded to the tenths place.
Answers
Answer:
Perimeter is 12mm, height is [tex]2\sqrt3[/tex]mm in simplest radical form, and 3.5mm in approximate decimal form.
Step-by-step explanation:
The perimeter is easy; since it's an equilateral triangle, all sides are the same length of 4, so you can just do 3*4 (3 sides, 4mm each) to get a perimeter of 12.
For the height, you can see that it forms two right triangles, each with a given base of 2 and a hypotenuse of 4. We can apply the pythagorean theorem ([tex]a^2+b^2=c^2[/tex]) here to find the missing leg length of the smaller right triangles, which is equal to the big triangle's height.
I've enclosed an attachment for that.
Hope this helps!
Gabriella goes to a store and buys an item that costs x dollars. She has a coupon for 35% off, and then a 8% tax is added to the discounted price. Write an expression in terms of x that represents the total amount that Gabriella paid at the register.
Answers
Answer:
0.702x
Step-by-step explanation:
Let's first find the discounted price Gabriella received with the 35% off coupon:
Discounted price = x - (0.35 * x)
Now, let's calculate the 8% tax on this discounted price:
Tax = 0.08 * (x - 0.35x)
Finally, let's add the tax to the discounted price to find the total amount Gabriella paid at the register:
Total = (x - 0.35x) + 0.08(x - 0.35x)
Simplifying the expression:
Total = x(1 - 0.35) + 0.08(x - 0.35x)
Total = 0.65x + 0.08x - 0.028x
Total = 0.702x
Therefore, the expression that represents the total amount Gabriella paid at the register is 0.702x.
Answer: 0.702x
Step-by-step explanation:
Discounted price = x - (0.35 * x)
Now, let's calculate the 8% tax on this discounted price:
Tax = 0.08 * (x - 0.35x)
Finally, let's add the tax to the discounted price to find the total amount Gabriella paid at the register:
Total = (x - 0.35x) + 0.08(x - 0.35x)
Simplifying the expression:Total = x(1 - 0.35) + 0.08(x - 0.35x)
Total = 0.65x + 0.08x - 0.028
xTotal = 0.702x
Last year at a certain high school, there were 50 boys on the honor roll and 120 girls on the honor roll. This year, the number of boys on the honor roll increased by 22% and the number of girls on the honor roll increased by 15%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).
Answers
Step-by-step explanation:
50 boys increased by 22%.
that means the number 50 is multiplied by 1.22 (= 1 + 0.22), as 22% = 0.22 :
50 × 1.22 = 61
the difference is 61 - 50 = 11
120 girls increased by 15% :
120 × 1.15 = 138
the difference is 138 - 120 = 18
the total number of additional honor roll students is
11 + 18 = 29
the total number of students was originally
50 + 120 = 170 = 100%
1% = 100%/100 = 170/100 = 1.7
how many % are the 29 difference ?
as many % as times that 1% fit into 29 :
29 / 1.7 = 17.05882353... ≈ 17.1%
so, the number of honor roll students increased by about 17.1%.
This is the graph of f(x) = x+A/x+B. The grid lines in the graph are one unit apart. What is the value of A/B
Answers
The value of A/B is given as follows:
A/B = -2.
What are the asymptotes of a function f(x)?The vertical asymptotes are the values of x which are outside the domain, which in a fraction are the zeroes of the denominator.The horizontal asymptote is the value of f(x) as x goes to infinity, as long as this value is different of infinity.From the graph, the function has a vertical asymptote at x = 1, hence the value of B is given as follows:
B = -1 -> as x + B = 0 -> x = -B = -1.
When x = 0, y = -2, hence the value of A is obtained as follows:
A/-1 = -2
A = 2.
Then the division is given as follows:
A/B = 2/-1 = -2.
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Last year at a certain high school, there were 50 boys on the honor roll and 80 girls on the honor roll. This year, the number of boys on the honor roll increased by 20% and the number of girls on the honor roll increased by 10%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).
Answers
Answer:
17.6 or 18
I hope! T-T
An investor has an account with stock from two different companies. Last year, his stock in Company A was worth $6100 and his stock in Company B was worth $6480. The stock in Company A has decreased 2% since last year and the stock in Company B has decreased 10%. What was the total percentage decrease in the investor's stock account? Round your answer to the nearest tenth (if necessary).
Answers
Investment in Company A by investor = $6100
Investment in Company B by investor = $6480
The decrease in value of the stock of company A is 2%
The decrease in value of the stock of company B is 10%
Value of wealth that investor lost in company A = 6100× 2/100
= 61×2
= $122
The decline in the value of the stock of company B = 6480×10/100
= 648×1/1
= $648
The total decline in the wealth of the investor= 122+648
= $770
The combined wealth of investor in both companies= 6100+6480
= $12580
Percentage of decline in the stock account of investor= 770×100/12580
= 77000/12580
= 6.1%
The total percentage decline in investor's stock account is 6.1%
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The table shows the number of runs earned by two baseball players.
Player A Player B
2, 1, 3, 8, 2, 3, 4, 4, 1 1, 4, 5, 1, 2, 4, 5, 5, 10
Find the best measure of variability for the data and determine which player was more consistent.
Player A is the most consistent, with a range of 7.
Player B is the most consistent, with a range of 9.
Player A is the most consistent, with an IQR of 2.5.
Player B is the most consistent, with an IQR of 3.5.
Answers
The range is the difference between the maximum and minimum values in a dataset. For Player A, the range is 8 - 1 = 7. For Player B, the range is 10 - 1 = 9.
The IQR is a measure of variability that gives the range of the middle 50% of the data. To find the IQR, we need to first find the median of the dataset, which is the middle value when the data is arranged in order. For Player A, the median is 3, and the quartiles are 2 and 4. Therefore, the IQR is 4 - 2 = 2. For Player B, the median is also 4, and the quartiles are 2 and 5. Therefore, the IQR is 5 - 2 = 3.
Based on these measures of variability, we can conclude that Player A is more consistent, as they have a smaller range and a smaller IQR. Therefore, Player A is the answer and the correct option is: Player A is the most consistent, with an IQR of 2.5.
Last year at a certain high school, there were 88 boys on the honor roll and 125 girls on the honor roll. This year, the number of boys on the honor roll increased by 25% and the number of girls on the honor roll increased by 12%. By what percentage did the total number of students on the honor roll increase? Round your answer to the nearest tenth (if necessary).
Please help meeee
Answers
Answer: 17.4
Step-by-step explanation:
Find new values:
88(1+0.25)=110
125(1+0.12)=140
Last Year This Year
Boys 88 110
Girls 125 140
Total 213 250
Find overall increase:
213(1+r)=250
213(1+r)=250
213(1+r)/213=250/213
1+r=1.173709 (Subtract 1)
r=0.173709 (Multiply by 100 and round to nearest 10th)
Final Answer: 17.4%
whats the percantage error?
Answers
Answer: Therefore, Brianna's percent error is 77.78%.
Step-by-step explanation:
Answer:
77.78%
Step-by-step explanation:
PLEASE HELP NO WRONG ANSWERS!!!!!
Answers
Answer:
The probability of you getting tails twice is 25%
Kenney High School’s swimming pool is 25 yards long. The pool has 8 lanes, each of
which is 3 yards wide. The pool is filled to a depth of 6 feet.
Answers
Answer:
Length: 75 ft.
Width: 72 ft.
Step-by-step explanation:
1 yard = 3 feet
So when it says the pool was 25 yards long and 1 yard = 3 feet, multiply 25 x 3 = 75. So, the length of the pool is 75 ft.
If there are 8 lanes and each are 3 yards wide and 1 yard = 3 feet, that means every lane = 9 ft. Now we know there are 8 lanes and each is 9 ft wide. Multiply 9 x 8 = 72. So, the width of the pool is 72 ft.
length: 75 ft
width: 72 ft
Step-by-step explanation:
Length: (25 yd)(3 ft/yd) = 75 ft.
Width: (8 lanes)(3 yd/lane)(3 ft/yd) = 72 ft.
The length and width are 75 ft and 72 ft, respectively.
A total of 96 dogs and cats were taken to a veterinarian's office last week. The ratio of dogs and cats was 3:5. How many of the animals taken to the vet's office were cats
Answers
If you take 3x and 5x and set them to equal 96 and solve you get x=12 then plug it in to be 12 times 3 and 12 times 5
Answer:
60
Step-by-step explanation:
Graph and find the slope of the following.
pls help me, I need this tomorrow, thxx
Answers
Answer:
Step-by-step explanation:
Slope = delta y/ delta x = (y2 - y1) / (x2 - x1), all other details on photos
2 1/4 ÷(3/8 ÷1/2)
i know this might be easy but the my hw website keeps saying wrong
Answers
Answer:
The answer is 28
Step-by-step explanation:
2 1/4 ÷ (3/8 ÷ 1/2)
= 9/4 ÷ (3/8 × 2/1)
= 9/4 ÷ (6/8)
= 9/4 ÷ (3/4)
=9/4 × 4/3
= 3
2 1/4 divided by ((3/8)/(1/2))
First, solve what is in the parentheses
3/8 divided by 1/2 becomes ——> 3/8*2/1
3/8*2/1 can simply to 6/8 or 3/4
Then we take 2 1/4 and make it 9/4 by multiplying 2*4=8 and adding 1 to get 9/4
This way we can divide 9/4 by 3/4
So 9/4 divided by 3/4 becomes ——> 9/4*4/3
9/4*4/3 becomes 36/12 which simplifies to 3
So this means that the answer is 3
Which statement correctly compares the areas of these two rectangles?
A. The area of the blue rectangle is less than the area of the yellow rectangle.
B. The area of the blue rectangle is greater than the area of the yellow rectangle.
C. The area of the blue rectangle is equal to the area of the yellow rectangle.
D. You cannot compare the areas of these two rectangles.
Answers
Answer:
A
Step-by-step explanation:
You can multiply the dimensions of each rectangle to get the area of them.
blue would be 10x4 so the area is 40. The yellow would be 6x8 so the area is 48. Therefore the area of the blue rectangle is less than the yellow! :)
SOMEONE HELP ME PLEASE NO WRONG ASNWERS
Answers
The probability of rolling a 4 is 1/12
During the month of august, Mr. Amazon received junk mail on 25 of those days. What is the relative frequency of Mr. Amazon receiving junk mail?
Answers
Answer:
1.24
Step-by-step explanation:
To find the relative frequency, divide the frequency(f) by the total number of data values (n)
31 days in August / 25 = 1.24
Ms. Petersen runs the school cafeteria. In October, she had to order 15 cases of chocolate milk twice because the students at her school love it so much. Each case contains c cartons of chocolate milk.
Answers
Ms. Petersen ordered 30c cartons of chocolate milk in October.
brief detail
To solve the problem, we need to know the total number of cartons of chocolate milk that Ms. Petersen ordered in October.
If she ordered 15 cases of chocolate milk twice, she ordered a total of 30 cases of chocolate milk (15 x 2).
We are also told that each case contains c cartons of chocolate milk. So, the total number of cartons of chocolate milk that Ms. Petersen ordered is:
30 cases x c cartons per case = 30c cartons
explanation:
No of cartoon of chocolate milk
= c
No of cases ordered = 15*2
Each cartoon contains chocolate milk = 15*2*c
=30 c
Draw a coordinate plane.
K(10,....), L(....,20), M(30,....)
Write their missing coordinates.
Answers
Answer:
K=10, 5
L=40, 20
M= 30, 15
