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Physics(class) /Math (problem)

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Math
I don't get the first problem of my homework. We learned three lessons today, the increase, decrease, and finding the base number. But i don't know which one I should use. Please help with this problem: There are 12 girls in Mr. Cooper's class. The girls make up 40% of the ...

statistics
this is a problem in my statistics class, and I am lost to me, it is confusing or missing something here is the problem please help grade points are assignede as follows: a=4,b=3,c=2,d=1,f=0. grades are weighted according to credit hours. if a student receives an A in a four-...

Math
There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test? ****** This is how I slove the problem, but I stuck in the ...

Physics (College)
A student rides her bicycle home from physics class to get her physics book and then heads back to class. It takes her 21.0 min to make the 12.8 km trip home and 13.0 min to get back to class. Calculate her average speed for the round-trip. Answer must be converted to km/h I ...

math
suppose you want to take a karate class. the first class is january 16th. the class meets every week for 6 weekswhats the date of the last class? Start at 1/16 and add 7 days six times to get 1/23, 1/30, 2/6, 2/13, 2/20 Find the sum the each letter stands for in the problem ...

English
At school, he learns 10 subjects such as math, science, social studies, computers, ethics, etc. He is in math class now. He has a cell phone. He is sitting at the back. One of his friends calls him and asked "Which class are you in?" What is the answer to the question. 1. I'm ...

math
Math word problem: There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class.

English
There are 7 classes for first year students. Each class is composed of about 30 students. Emily is a student of Class 1-2. One of his classmates who went to the same elementary school asks: Which class are you in? What is the answer to the question? 1. I'm in Class 1-2. 2. I ...

Physics
You slide your friend with a mass of 65 kg out of the way as they are blocking the exit and keeping you from escaping from physics class where you have been tormented by problems for the last hour and a half. The coefficient of kinetic friction between the floor and your ...

problem solving
ou are completing the final exam in your class. Your instructor’s assignment instructions state that you may only use the following resources: library books, class notes, texts, and the instructor. You and your roommate discussed one of the questions, but you wrote your own ...

statistics
I need to find the class midpoint, boundaries and class with for the following problem Tar Cigarette Filter Frequency 2-5 2 6-9 2 10-13 6 14-17 15 I did the midpoint and boundaries 3.5 5.5 7.5 9.5 11.5 13.5 15.5 17.5 But for the width I got an answer of 1.25 can someone please...

10th Grade Math
A history class is comprised of 6 female and 9 male students. If the instructor of the class randomly chooses 5 students from the class for an oral exam, what is the probability that 2 female students and 3 male students will be selected? Round your answer to 3 decimal places...

5th math
what is the least common multiple (LCM)for 15 and 45? There are 16 girls in a class of 36 student. which expression could be used to determine the number of boys (b) in the class? please! help i think this too hard for 5th grade math. this suppose to be for 10th or college ...

math
In a local school 34 students are enrolled in a math class, 85 are enrolled in an english class, 58 are enrolled in an art class, and 54 are enrolled in a history class. Construct a pie chart with this data. What is the central angle of the slice representing students enrolled...

Math
On a math test,12 students earned an A. This number is exactly 25% of the total number of students in the class. How many students are in the class? 'In this problem I'm not sure whether I'm being asked to solve for one or two unknowns. May I have your help ? Thank you.

To Helper
I had a problem to solve, and I don't get how to make equations from this problem. Mrs. Chans math class contributed 2 dollars and $1 coins to an earthquake relief fund. the number of $1 coins contributed was 8 less than 5 times the number of $2 coins contributed. if class ...

stat
A contract employs three types- Class A , Class B and class c. to class A workers, he pays an average monthly salary of $ 400, to class B workers, he pays an average monthly salary of $ 320 and to class C workers he pays an average monthly salary of $ 150. The combined average...

Math
5/8 of the students in my class were boys. When 6 girls joined the class, the number of boys equaled the number of girls. How many students were in my class then? "What's the formula for this problem?"

Art
based on their attire, playing music during leisure time is most likely a pursuit of which greek class citizen? lower class musical class upper class middle class i believe it is upper class

high school algerbra class
(2/x^2-4)+(3/x^2)+(x-6+1/x+3) someone please show me how to work this problem with the steps, so I can see if I can get it. This is due tomorrow in class. Thank you.

Moral Help
This is pretty irrelevant to subjects, but I've had a problem (no, not a math problem) that I could use some good advice on. Today I received a detention for messing around with a friend during a computer apps class. It's easy as hell, so I find it easy to be distracted. ...

English
Which class are you in? 1. I'm in class 1-2. (I am a member of Calss 1-2. In the classroom, there are 30 students.) 2. I'm in math class. (I'm listening to the math teacher. It's time for studying math.) ==================== What is the answer to the question, #1 or #2?

Math
can you please help me work on this problem? I have a few and I want to know how to figure it out: The ratio of boys to girls in a class is 5 to 6. How many boys at in the class if there is a total of 121 students. I guessed 55 boys and 66 girls?

College Algebra
Solve the problem. Jon has 1162 points in his math class. He must have 86% of the 1500 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?

English
1. I don't know anyone in my class. 2. In my class, I don't know anyone. ============================= In #1, what is the part of speech of 'in my class'? Does 'in my class' modify 'anyone' or 'know'? In #2, 'In my class' is an adverbial phrase, right?

high school
Math problem: Anida won the class election by margin of 5-3. She received 355 votes. How many votes did the other candidates get? I really need to understand how you did the problem to get the answer

Discrete Math
I have a review problem I am having problems with. This is the problem: Be able to show the function, g(x) is O(f(x)) numerically as we have done in class Use the definition of O-notation to prove that 2x^2+3x+4 is O(x^2) (Do not use the theorem on polynomial orders) This is ...

English
Posted by rfvv on Tuesday, March 22, 2016 at 11:55pm. Which class are you in? 1. I'm in class 1-2. (I am a member of Calss 1-2. In the classroom, there are 30 students.) 2. I'm in math class. (I'm listening to the math teacher. It's time for studying math...

Math problem or trick
if 60% of students in the class were wearing sport shoes and 40% dress shoes, does it mean that everybody in the class were wearing shoes?

English
He has stopped taking boxing lessons and goes to the ballet class. (In this sentence, what does 'class'mean? Does 'class' mean 'lesson'? Or does 'class' mean the 'class' as in ' He is a student of Class 1-1'?)

Math ~ CHECK ANSWER
Below are two sets of student quiz scores on a 30-point quiz. Which of the following can you conclude by comparing their box-and-whisker plots? Class A: 5, 10, 13, 18, 19, 25, 29 Class B: 1, 3, 5, 7, 9, 9, 13 a) The first quartile of class B is greater than the third quartile ...

math
At first one third of the class were boys. Then another boy joined the class. Now three out of eight of the class are boys how many students are in the class now? (Hint:There are fewer than 40 students in the class.)

Ms. Sue PLZ HELP!!!(Civics)
3. Which of the following statements best describes a foreign policy issue? A problem that affects every citizen on a single continent A problem that cannot be contained within a country’s borders *** A problem shared among people living in the same country A problem related...

PreAp Physics
You are walking from your math class to your science class carrying a book weighing 112N. You walk 45 meters down the hall, climb 4.5 meters up the stairs and then walk another 40 meters to your science class. What is the total work performed on your books.

algebra
please help me write a complete algebraic solution thanks problem 18. mike, alex, olivia ran for the office of president of their senior class . of the 400 votes cast, olivia received 38% of the votes and michael received 116 votes. A. What % of the votes did michael receive? ...

Math - Algebra 2 some1 plz help?
in a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a class? how many students ...

maths
the class-marks of classes in distribution are 6,10,14,18,22,26,30.find (a)class size (b)lower limit of second class (c)upper limit of last class (d)third class Explain in detail.

stats 101
how do you find the lower class limit,upper class limit, class width, class midpoint, and class boundaries from a set of frequencies data

Math
There are three times as many people in the psychology class as in the art history class. there are 16 more people in the algebra class then the art history class The total enrollment of the three classes is 86. How many students are enrolled in each class?. I need a little ...

math, algebra
Members at a yoga school pay $7 per class plus a one-time $120 membership fee. Non-members pay $11 per class. How many classes would a member have to take to save money compared to taking classes as a non-member? I'm struggling with this problem a bit, and so are my friends. I...

Business
In a frequency distribution, what is the number of observations in a class called? A. class midpoint B. class interval C. class array D. class frequency E. none of the above

Statistics- Math
If a specific class in a frequency distribution has class boundaries of 132.5 - 147.5 what are the class limits ?

Math
There are 28 boys in a class which account to 78 of the whole class. Find the total number of students and girls in the class.

math for 6 grade
write and solve an eqution for the following: there are 17 children in the class. 5 more join the class. how many students are in the class.

Physics
Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed. After I read the ...

Sociology
I have already answered these questions but I am a little uneasy of the answers. Could someone please read them and provide feedback and if possible a little more detail for explainations? Q: What is the meaning of stratified? A: To classify or separate (people) into groups Q...

Math
If threr are a total of 20 students in Bibi's class, how many boys are in the class? How manygirls are in the class?

geometry
Write the equation and solve the problem: A high school graduating class is made up of 512 students. There are 70 more girls than boys. How many boys are in the class?

math
The average height of a class of students is 134.7cm. The sum of all the heights is 3771.6 cm. There are 17 boys in the class. How many girls are in the class?

algebra
I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem and what steps must ...

algebra
I am having trouble anwering the following problem: The test scores from Mrs. Gray's math class are shown below. 72, 73, 66, 71, 82, 85, 86, 89, 91, 92 Construct a box-and-whisker plot to display this data. I don't know how to begin answering this problem and what steps must ...

Word problem maths
The average wage of a class of 21 boys is 14year 3month.if the oldest boy is not counted in,the average drop to 14years 2months.how olds is he in the class ????

English
1. My favorite class is math class. 2. My favorite class is a math class. 3. My favorite class is the math class. (Which one is correct?)

math
Three students, Chris, Vlad, and Steve, are registered for the same class and attend independently of each other. If Chris is in class 80% of the time, Vlad is in class 85% of the time, and Steve is in class 90% of the time, what is the probability that at least two of them ...

math
Write an expression for the problem, then evaluate. Tickets for children in a carnival cost 150. A teacher of a class of 48 pupils gets for the whole class but only 43 pupils buy. Is it right for the teacher to say that she has 6,350 for the tickets of the children? Why

math
there are 4 girls in Mrs. Changs class than Mr. Blackwell's. 5 girls moved from Mrs. Changs to Mr. Blackwells. Now there are twice as many girls in Mr. Blackwells class as there are in Mrs. Changs, How many girls were in Mr. Blackwells class to begin with? Help, stuck with ...

English
1. What's your favorite class? 2. It's math. 3. It's math class. 4. It's a math class. 5. My favorite class is math. Which are the right answers for the question? 6. What's your favorite subject? 7. It's math. (What about the question, #6? Is the question the same as question ...

Math
In a math class there are 28 students. Each student has a 90% chance of attending any given class and students act independently. What is the probability that tomorrow's class has perfect attendance?

Math
When a class took a math test, 15% of the class failed, 25% made some mistakes (but didn’t fail), and 24 students got perfect scores. How many students were in the class?

Math
Simplify 2(x+2)+4x-10x. I do not understand how to do this problem and we did not go over simplifying in math class. Please help.

business
Eastern Airlines knows that 20% of its customer fly first class,20% fly business class, and the rest fly coach. Of those customers who fly first class,70% are from the East Coast while 30% are from elsewhere. In addition, of those customers who fly business class, 50% are from...

Math
There Is 3/4 Of Class 218 Going To Art And 1/8 Going To Gym. The Rest Of The Class Is Going To Computer Class. What Fraction Of The Class Is Going To Computers ?

Statistics
A professor has noticed that, even though attendance is not a component of the final grade for the class, students that attend regularly generally get better grades. In fact, 39% of those who come to class on a regular basis receive A's. Only 14% who do not attend regularly ...

Physics
Find the net force on a,b and c. Given ma=363kg mb=517kg and mc=154kg. a<--0.5m-->b<--0.25-->c This was a question given to our class by our physics teacher ... he did not show us how to do it. So any help/steps involved to solve this problem would be much ...

Math:Probability
The probability of having homework over the weekend in math is 0.9,history is 0.6, and Spanish is 0.75. 1. What is the probability of having exactly one class that gives homework? Is this a nCx problem? I got an illogical answer: 10.54=1054% THIS IS NOT RIGHT!!!!!!! 2. What is...

Math - Algebra 2
In a certain math class, each student has a text book, every 2 students share a book of tables, every 3 students share a problem book, and every 4 students share a mathematics dictionary. If the total number of books is 75.. how many students are in a class? how many students ...

English
What's your favorite class? My favorite class is math. My favorite is math class. My favorite class is a math class. My favorite class is the math class. (Which answer is correct?)

Math
THE STUDENTS IN MR HENLYS CLASS PREDICTED THAT IF THEY EACH ROLLED A DIE 90 TIMES THE RESULT OF 1 OUT OF EVERY 6 ROLLS WOULD BE A 5. Each student then completed the experiment which result best supports the prediction of getting a 5 once out of 6 times. ( the question didn't ...

English
Which class are you in? I'm in class 2. What class are you in? I'm in class 2. Which year and which class are you in? I'm in the second year and the second class. What year and what class are you in? I'm in the second year and second class. I'm in the second year, second class...

math
there are 20 students in mark`s homeroom class. Ten percent of the students in marks homeroom class are also in art class He finds the number of students in his homeroom class who are also in art class like this . Can you tell me the answer of how many error he made.

English
1. He became the captain of the class. 2. He became the president of the class. 3. He became the head of the class. 4. He became the leader of the class. ============== Which ones are commonly used? What is the suitable name for the student who represents a class?

algebra
Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original number of girls in class...

algebra
Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original number of girls in class...

math
there are 30 students in class. 1/5 of the class are girls. how many boys are in the class

math
every math class at super fun time high school has 31 students and every science class has 18 students. the school offers 4 more math class than sciencs. if the school has 418 students, how many of each class does the school offer.

math
•You and three (3) of your friends were in the same advance placement high school chemistry class in high school. All four (4) of you decided to take the same chemistry class together at the local university along with 21 other students. On the first day of class, the ...

Math
The class with the greatest mean sales in a spring fundraiser will win a prize. The mean for Eric's class is $148. The mean for Natalia's class is $152. Natalia's sales total $150. If Natalia moves to Eric's class, the mean for each class increases. Explain why?

Math
In mr.kingmans math class four fifths of the stundents earned an a on their math exam.the rest of the class earned a b .what percent of the class earned an a ? WhAt percent of the class earned a b

statistics
how to identify the 5 W's in the problem of the student averages in a High School college algebra class for the last semester. the teacher wanted to see how well the class did and constructed the Distribution from the grade book. who- Students what- average when last semester ...

Exam skills
Hello I'm a grade 10 student . I'm an A* student and have excellent knowledge. I raise my hand in class and teachers love the way i act maturally and how i get all questions right each time The problem with me is I get everything right in class but when it comes to tests or ...

sociology
1. discussion of marx, how does marx defines class and what problem does he have. 2. discussion between social class and health inequalities.

percents
how do you find the percent of how many students in the class for example there are 2000 students in a class and 20 percent of them speak french...how do i solve this problem?

math
how do i do variables in math i don't figure it out your self:) Do you have a specific problem you want help with? The subject should be covered by your text and your teacher's in-class explantions.

Physics(class) /Math (problem)
Moe earns 15% more than her husband Joe. Together they make 78000 per year. What is Joe’s annual salary? Answer to two significant figures. My answer was $31000, but the program doesn't seem to want to take it. Did I do something wrong?

Math
In a middle school 5th grade class there are 5 girls for every 4 boys. all together the class has 27 students. How many boys are in the class?

Math
There are 24 students in mrs. garcia's class .she wants to divide the class evenly into groups of at least 4students .write ways in which she can divide the class

math
the biology class has a lab every days. the earth science class has a lab every three days . which class day do they both have class ?

math
Cierra arrived at her dance at 9:05. She waited in the classroom for 10 minutes and them the class began. If the class ended 1 hour 10 minutes later,at what time did the class end? A.10:15 B.10:20 C.10:25 D.10:30 C?

Math (Instanttaneous rate of change)
Compute the instantaneous rate of change f'(a) for the function f(x) at x=a using: f'(a)=lim(h->0) (f(a+h)-f(a))/h f(x)=x^2 at x=3 My teacher didn't even go over the problem since class was over but gave us the answer being 6. How do you approach this problem to end up with...

Math
More than 18'students in an algebra class pass the first test. This is about three-fifths of the class. How many students are in the class? How do you know?

math
a class has 18 classes with 35 students in each class. in order to reduce the class size to 30,how many new classes must be formed?

math
the ratio of boys to girls in class is 2:3. If Ms. Wise has 24 students in her class, how many girls are in the class. Please show work

Calulus
Hi there I need help with one of the problem from my homework package. This week for my calculus class, we were learning how to do partial derivative and finding the tangent of the plane. So I do not know how to approach this problem. Please help me by how to derive this ...

Math
In a class of 80 students, 40 bring their textbooks to class, 20 bring some sort of beverage to class, 60 bring calculators to class, while 5 students bring nothing to class. If 30 students bring both their textbooks and calculators to class, how many students bring only a ...

English
1. My favorite class is a math class. 2. My favorite class is math class. (Which one is right? are both OK? Do they have a different meaning?) 3. I have two math classes today. 4. I have two math class today. (Which one is right?)

Algebra 1
Mary's class took two tests last week. 80% of the class passed the math test, 90% of the class passed the English test, and 72% of the class passed both. What is the probablility that a randomly selected student in Mary's class failed both tests? Express your answer as a ...

physics
what is is called (both terms) when somthing makes a sound but no one is aroun to here it? Plz this is 4 my h work It could be many terms. Unobserved Source comes to mind. Surely you are not wasting much class time in physics class on this.

Math
I'm trying to figure out the mode and modal class and the numbers that are the mode are 17, 20, 24, 25, 31, 33 from a set of numbers. (I already figured that part out). My question is what of those numbers is the modal class or in other words what is a modal class as opposed ...

math/hurry
The ratio of boys to girls in Mr. Joiner’s class is 5 to 7. If there are 15 boys in the class, how many total students are in the class?

PHYSICS
Hi! I have some questions from a study guide in my physics class, and they give me the answer, but I have to show how to get the answer. I did most of them, but need help with these. Here is problem #3: A 30 kg kid on rollerskates is being pushed by his mom with a force of 10 ...

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