Alan has read 80% of a book. He has 4 more pages to finish. How many pages are there in the book?
Answers
Answer:
20 pages
Step-by step:
4 pages = 20%
20(5)=100 so 4(5)= 100% of the book
4(5)= 20
the book has 20 pages.
Answer:
20 pages
Step-by-step explanation:
If 100%-80%=4 pages
then 20%=4 pages (multipy both sides by 5)
100%=20
20 pages
Related Questions
Please help me! I have one wrong! If I get another one I fail!
Answers
Answer:
the answer is either 10 or 30
Step-by-step explanation:
A scuba diver is 15.5 feet below the surface of the water. If the diver continues to swim downward at a rate of 2.5 feet per second, what is her location, in feet, relative to the surface after 712 seconds?
Answers
2.5 x 712= 1,780
1,780 + 15.5 = 1795.5 feet
During the last few months, Maria has seen deer in her backyard on 13 days and no deer on 52 days. What is the approximate probability that she will see deer in her yard tomorrow?
A) 0.25
B)1/5
C) 33.3 %
D) 2/3
Answers
Answer:A
Step-by-step explanation:
gooooooooooooooooooooooooooooooooooooooooooooooooooooooood moring got another question
Answers
Answer:
\(x\) = 12
Step-by-step explanation:
This question is asking what \(x\) equals and in order to find the answer, we need to subtract 25 - 13 which equals 12.
Which list orders the numbers from least to greatest?
Negative 2.4, negative 1.5, negative 2 and one-fourth, negative 3, negative 1 and one-eighth
A number line going from negative 4 to positive 4.
Negative 1 and one-eighth, negative 1.5, negative 2 and one-fourth, negative 2.4, negative 3
Negative 3, negative 2.4, negative 2 and one-fourth, negative 1.5, negative 1 and one-eighth
Negative 3, negative 2 and one-fourth, negative 2.4, negative 1 and one-eighth, negative 1.5
Negative 1.5, negative 1 and one-eighth, negative 2.4, negative 2 and one-fourth, negative 3
Answers
Negative 3, negative 2.4, negative 1.5, negative 2 and one-fourth, negative 1 and one-eighth
Hope my answer helps you✌️
Jamar arranged flowers in 35 vases. How many flowers did he arrange?
Answers
Could you be more specific? I don't understand the question.
hhhhhhhhhhhheeeeeeeeeellllllllllpppppppp me
Answers
Answer:
3
Step-by-step explanation:
plug in
16
--- -1
4
divide 16/4
4-1
subtract
3
At a recent football game of 8,450 in attendance, 150 people were asked what they prefer on a hot dog. The results are shown.
Ketchup Relish Chili
54 36 60
Based on the data in this sample, how many of the people in attendance would prefer ketchup on a hot dog?
4,225
3,380
3,127
3,042
Answers
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Answer:
By proportion that is:(54/150) * 8450= 54 * 56 1/3= 3042
Step-by-step explanation:
Amanda purchased a pair of shoes for $32.00 and two blouses
for $15.00 each. If the sales tax is 8.5%, what was the total
amount Amanda paid?
Answers
Answer: 3.68
Hopefully is helps
Answer: $67.27
Step-by-step explanation:
Add: $15.00+$15.00 : $30.00. Because she purchased two of them.
Then add the total to $32.00, which = $62.00.
Writing the proportion: 8.5/100 x/62.00
Multiply the sales tax by your total amount = 8.5*62.00=527.00
Then divide it by 100= 527.00/100= $5.27. <-- ( sales tax amount )
Add the sales tax to $62.00 = 67.27
Answer: $67.27
There were 18 seeds planted in the garden. After one week there were 324 seedlings. After 2 weeks there were 648 seedlings. If the number of seedlings grows at the same rate each week, how many seedlings will there be after 5 weeks?
Answers
Answer:
The answer is 1620 seedlings.
Step-by-step explanation:
The rate is that every one week, there is an increase of 324 seedlings. If it continued for 5 weeks, the total amount of seedlings will be 1620 seedlings. The equations I used to solve this are 648-324=324. 324x5=1620.
You pick a card at random.
1
2
3
What is P(factor of 16)?
Write your answer as a fraction or whole number.
Answers
Figure b is a scaled copy of figure a. What is the scale from figure a to figure b
Answers
Answer:
The scale of this figure 4 to 1
Question 12(Multiple Choice Worth 2 points)
(Three-Column Tables MC)
The relationship between the number of pies-to-cakes chosen by middle school students as their favorite dessert is shown in the table.
Pie 36 42 60
Cake D 7 C
Total 42 A B
What is the value of C in the table?
6
10
49
70
Answers
Answer:
The value of C in the table is 0. Total number of cake lovers = Total - (number of students who chose pie) = 138 - (36 + 42 + 60) = 138 - 138 = 0
Step-by-step explanation:
The value of C in the given table is 10. Therefore, option B is the correct answer.
What is proportionality?The property of having suitable proportions in terms of size, number, degree, harshness, etc.: If a defensive action against an unfair attack results in the destruction that contravenes the proportionality criterion, it may even go far beyond a justifiable defense.
From the given table,
42/7 = 60/C (Using proportionality)
6=60/C
C=10
Therefore, option B is the correct answer.
Learn more about proportionalities visit:
brainly.com/question/3254974
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A right triangle (90) has a one angle that measures 55 degrees. What is the measure of the third angle?
90 degrees
145 degrees
35 degrees
180 degrees
Answers
Answer:
c or 35
Step-by-step explanation:
subtractoin because all angles in a triangle = 180
1. Can someone help me with math
Answers
Answer:
I am pretty sure it is 1.
Step-by-step explanation:
I am doing addition and subtraction methods.
Please help! Problem below!
Answers
Answer:
Function B is the correct answer. It has a greater rate of change than function A.
Answer:
Function B is the correct answer
what is 123350916415826824276 X 356324 - 983663 divided by 4
its on my test i need help plsssssssssssssssssssssssss
Answers
Answer:
4.39528919×1025
Step-by-step explanation:
Answer:
1.0988223e+25
Step-by-step explanation:
I used a calculator......hope it helped:))))))))))))))
PLEASE HELP MEE (look at pic question 1 & 2)
Answers
Answer
1 The product of -3x^(3)+2x-4 + 3x-2 is -3x^3-5x+6
and the product of 3x^(3)+2x-4 + 2x-3 is -3x^(3)-4x+7
2 they are not equal
Step-by-step explanation:
Combine like terms the compare the product -3x^3-5x+6 -3x^(3)-4x+7
-3x ^3-5x+6
and the product of 3x^(3)+2x-4 + 2x-3 is
-3x ^ (3)-4x+7
2 they are not equal
Simplify the following expression 4(x−8)−7x + 3 (in a test)
Answers
Answer:
-3x - 29
Step-by-step explanation:
Just a tip. if you have questions like this one use math.way it will help you tremendously !
Hope this helps you :)
Have an amazing day <3
There are 24 boys, 45 girls and 281 adults in a badminton club.
50 more children join the club.
The number of girls is now 18% of the total number of members.
How many of the 50 children were boys?
Pls give step by step explanation of possible
Answers
Answer:
you'll get the answer with these steps
Step-by-step explanation:
24 boys,45 girls if 50 more children came
add all of the 45,24and two hundred eighty one all together once its done subtract and multiply
Answer: Follow these steps.
Step-by-step explanation:
Add the total number of members in the club : 24+45+281+50=400Decipher the number of girls from the percentage given by the total number of members : (18/100)*400 = 72Now subtract the previously existing number of girls from the present number of girls : 72-45=27Subtracting the new number of girls from the total children who joined the club will give the number of boys : 50-27=23Therefore 23 boys joined the club.
#SPJ12
i have so many on here pleasehelp me it sin algebra1
1) through: (-2, -2), parallel to y = 2x - 1
2) through: (-4, -4), parallel to y = 7 4 x - 1
3) through: (5, -1), parallel to y = -6 5 x - 4
4) through: (-4, -4), parallel to y = 3 2 x + 4
5) through: (1, -1), parallel to y = 1 2 x + 1
6) through: (-1, -2), perp. to y = -3 2 x + 4
7) through: (3, 4), perp. to y = -3 2 x - 4
8) through: (4, 4), perp. to y = -4 9 x - 2
9) through: (-2, 3), perp. to y = -2x + 1
10) through: (2, -3), perp. to y = 2 7 x - 3
Answers
The function y = 3 squared - x - 3 is graphed only over the domain of {x | –8 < x < 8}. What is the range of the graph?
Answers
Answer: Y < = 144
Step-by-step explanation:
Given that the function y = 3 squared - x - 3 is graphed only over the domain of {x | –8 < x < 8}
That is, y = 3x^2 - 3
Since x is greater than -8, the minimum value of x will be -7.
Also, x is less than 8, the maximum value of x will be 7
Substitute the two values into the given function.
When x = -7
Y = 3(-7)^2 - 3
Y = 3(49) - 3
Y = 147 - 3
Y = 144
When x = 7
Y = 3(7)^2 - 3
Y = 3(49) - 3
Y = 147 - 3
Y = 144
The range of the graph is therefore, Y less than or equal to 144. That is,
Y < = 144
Question 4 Multiple Choice Worth 4 points) (05.01)Which equation can be used to calculate the area of the shaded triangle in the figure below? 4 ft 12 11 02(12 x 4) = 96 square feet (12 x 4) = 24 square feet 2 O2(12 + 4) = 32 square feet 0 14 + 12) = 8 square feet
Answers
Answer:
2nd one
Step-by-step explanation:
15 points 2 questions mathamatics
Answers
Number 2 is every answer except f. Which is 8,8
The reason this is is because every other coordinate can be reached by drawing lines of three that are either vertical or horizontal from the original vertex until you reach that coordinate.
I attached a picture and you can see how each coordinate connects to the original vertex, except 8,8 which is drawn in blue and you can see that it is attached but by four units instead of three, which means it does not work. Hope this helps!!
2.is all but f
Hope this is right
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.
a committee consisting of 4 faculty members and 5 students is to be formed. every committee position has the same duties and voting rights. there are 7 faculty members and 13 students eligible to serve on the committee. in how many ways can the committee be formed?
Answers
and
C(13, 5) = 13! / (5!(13-5)!) = (13 * 12 * 11 * 10 * 9) / (5 * 4 * 3 * 2 * 1) = 1287
Multiply these two combinations since the faculty members and students are selected independently:
Total number of ways to form the committee = C(7, 4) * C(13, 5) = 35 * 1287 = 45,045
Therefore, there are 45,045 ways to form the committee consisting of 4 faculty members and 5 students.
For faculty members:
There are 7 eligible faculty members, and we need to select 4 of them for the committee. This can be done using the combination formula:
C(7, 4) = 7! / (4!(7 - 4)!) = 35.
So, there are 35 ways to select 4 faculty members from the 7 eligible ones.
For students:
There are 13 eligible students, and we need to select 5 of them for the committee. Using the combination formula again:
C(13, 5) = 13! / (5!(13 - 5)!) = 1287.
Therefore, there are 1287 ways to select 5 students from the 13 eligible ones.
To form the committee, we multiply the number of ways to select faculty members by the number of ways to select students:
35 * 1287 = 44,895.
Hence, there are 44,895 ways to form the committee consisting of 4 faculty members and 5 students from the eligible candidates.
Can Someone help me? I will mark Brainliest!!
Question 1: The following graph shows the number of soccer games a team won in each of their first three seasons. Explain how you could redraw the graph so that the change in wins between three seasons does not seem so great.
Question 2: Why could the mean of the data set below be misleading?
ages of teachers: 29, 38, 39, 26, 29, 29, 39, 77, 38 ,29
Answers
Answer: Question 1: For season 1 it is 1,10 for the grid and for season 2 it is 2,8 Question 2: 29, is 14 in the gap to 38 and the rest count by 2s or 10s.
and the season 3 is 3,7
See more below......
Step-by-step explanation:
Question 1: Use a coordinate grid to answer the question.
Coordinate grid is a rectangular plane where the intersection of horizontal and vertical lines forms a grid network.
Question 2: Is you count by 2s or 10s.
2s are you add 2 to get the next number.
10s are counting multiple groups of 10 in a faster way.
Therefore, Question 1 and Question 2 are correct.
Answer:
Step-by-step \(\\ x^{2} \pi \alpha \alpha \sqrt[n]{x} \beta \left \{ {{y=2} \atop {x=2}} \right.\)
PLease solve it as fast has you can
Answers
Answer:
\(f^{-1}\left(f(576)\right)=\boxed{576}\)
\(f^{-1}(-7)+f(-7)=\boxed{13}\)
Step-by-step explanation:
The inverse of an invertible function with the domain of all real numbers is obtained by reflecting the original function across the line y = x, which swaps the input and output values of the function. Therefore, (x, y) → (y, x).
Given table:
\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&-7&11&-13&6&5&-9\\\cline{1-7}\vphantom{\dfrac12}f(x)&7&12&8&-7&13&5\end{array}\)
Inverse function:
\(\begin{array}{lrrrrrr}\vphantom{\dfrac12}x&7&12&8&-7&13&5\\\cline{1-7}\vphantom{\dfrac12}f^{-1}(x)&-7&11&-13&6&5&-9\end{array}\)
If we have a function f(x), the inverse function is denoted as f⁻¹(x), and it has the property that f⁻¹(f(x)) = x for all valid inputs x in the domain of f(x).
Therefore:
\(\large\boxed{f^{-1}\left(f(576)\right)=576}\)
The value of f(-7) is the value of f(x) when x = -7. Therefore, reading from the original table, f(-7) = 7.
The value of f⁻¹(-7) is the value of f⁻¹(x) when x = -7. Therefore, reading from the inverse function table, f⁻¹(-7) = 6.
Therefore:
\(\large\boxed{\begin{aligned}f^{-1}(-7)+f(-7)&=6+7\\&=13\end{aligned}}\)
Number of classes
8
7
6
5
4
3
2
1
0
Classes taught by each math teacher
in the math department
Mr. Linn
Mrs. Ross
classes
Mr. Kelly
Teacher
Ms. Moss
What is the range of classes taught by these teachers?
Answers
8-0
8-0= 8
Range is 8
I need help, please quickly
Answers
Answer: The ratio is 18:3
Step-by-step explanation:
Answer: 6 to 1
Step-by-step explanation:
A ratio refers to a fraction. In this case the question asks how many players to coaches there are.
The word "to" means that is where the fraction bar goes.
Players/Coaches
There are 18 players and 3 coaches.
18/3
18 can be divided by 3, 6 times so the fraction can be simplified to
6/1 meaning there are 6 players for every coach.