# Homework Help: 9th Grade

**Math**

If Brittany has a 49.7% grade average then for her final exam that is worth 20% of the grade and she gets a 90% what would her final grade be?

*Tuesday, May 31, 2011 by Anonymous*

**Pre algebra**

Kayla has a 41% grade average. On an exam that is worth 20% of her grade she gets a 100%. What is her grade now?

*Wednesday, May 25, 2011 by Ashley*

**Math**

Kayla has a 41% grade average. Then sha takes an exam that is for 20% of her grade and gets an 100%. What is her grade now?

*Wednesday, May 25, 2011 by Ashley*

**statistics**

what the error is: a) Grade Percent Frequency A 20% B 45% C 30% D 10% F 5% (b) The following table summarizes the grade breakdown on an exam in a small statistics class with 10 students. Grade Percent Frequency A 30% B 35% C 15% D 20% F 0%

*Monday, May 9, 2011 by John*

**College Algebra**

Charlie can grade exams in 2 hours. It takes Mark 6 hours to grade the same exams. If they work together, how long will it take for them to grade the exams?

*Wednesday, March 30, 2011 by Devin*

**appling middle**

If the data were displayed in a circle graph, what percent of the graph would represent the seventh grade? Enrollment is Sixth grade 64, Seventh grade 64, and Eighth grade is 70

*Thursday, March 10, 2011 by ry*

**maths**

The probabilities of a student getting grade A, B, C and D are 0.2, 0.3, 0.15 and 0.35 respectively. Then the probability that the student gets 1) At least C grade is __________ 2) At most C grade is ___________

*Thursday, March 10, 2011 by Sharon*

**9th grademaths**

explain mid point therom

*Tuesday, December 21, 2010 by darshana sundar*

**Math**

If a grade was drawn at random from the data shown below, what is the probability that the grade is not a B? Grade Frequency A 2 B 8 C 11 D 2 F 1 I think it is 1 out of 5 or 4 but I am not sure? Please help :) Thank you much!

*Sunday, December 5, 2010 by Shannon*

**6th grade**

Of the sixth-grade students surveyed, 12% bring their lunches to school. Suppose 24 sixth-graders do this? How many sixth-grade are at the school?

*Wednesday, December 1, 2010 by Anonymous*

**math**

At Smart Middle School students are required to take 7 classes each grading period. At the end of each grading period a student is assigned a final grade (A, B, C, D or F) for each class for the grading period. A student’s overall grade point average for the grading period ...

*Tuesday, November 16, 2010 by Anonymous*

**9th grad algebra**

how do you solve y=5x-8 and 5y=2x+6 using elmination? Thank you, Raina

*Tuesday, November 16, 2010 by Raina*

**8th grade**

At Smart Middle School students are required to take 7 classes each grading period. At the end of each grading period a student is assigned a final grade (A, B, C, D or F) for each class for the grading period. A student’s overall grade point average for the grading period ...

*Monday, November 15, 2010 by Anonymous*

**Math**

At Smart Middle School students are required to take 7 classes each grading period. At the end of each grading period a student is assigned a final grade (A, B, C, D or F) for each class for the grading period. A student’s overall grade point average for the grading period ...

*Monday, November 15, 2010 by 7890-8*

**9th grade**

Use the following Info. At sea level the speed of sound in air is linearly related to air temp. If 35 degrees Celsius sound travels at a rate of 352meters per sec. if 15degrees Celsius sound travels at 340 meters per sec. How would i write a linear equation that models speed ...

*Monday, November 15, 2010 by Kaela*

**9th grade algebra**

The force F required to stretch a string varies directly with the amount the string is stretched, S. 32 pounds is needed to stretch a string 4 inches.. A) Write a direct variation equation that relates F and S. Answer: 32=F*S+4 is what I think.. Most likely wrong. B) How much ...

*Monday, November 15, 2010 by Allyson*

**comparing fractions**

at Morris Elementarhy there are 45 students in each grade, four though six. In the fourth grade, 19 participate in sports after school. Two out of every six fifth grade play sports after schoo;. In the sixth-grade class, seven of every ten students are not playing sports. ...

*Wednesday, November 3, 2010 by maria*

**9th gradesocial studies**

i have a project on changing area under forest and its impact on environment and i am not getting any information on it can you help me

*Monday, October 18, 2010 by Anonymous*

**9th grade**

Celia bought 12 apples, ate two of them, and sold the rest at 20 cents more per apple than she paid. Her total profit was $1.00. How much did she sell for each apple? I need help with this question. I know that this is a bought and sold question. I know that she bought 12 ...

*Monday, September 27, 2010 by Kendrick*

**algebra 2**

simplify the square root of 18 m to the 9th power

*Sunday, September 19, 2010 by chelsea*

**9th**

Evaluate each expression. 9 ¸ 3 + 3 ´ 4 a. 24 b. 15 c. 17 d. 6 MY ANSWER 15??????

*Thursday, September 9, 2010 by Den*

**9th**

Define a variable and write an expression for the phrase. the quotient of 6 times a number and 16 a.(16x) / 6 b.(6x) / 16 c.96x d.x / 96

*Thursday, September 9, 2010 by Den*

**9th grade ENG**

in her room at the prow of the house where light breaks and the windows are tossed with linden. my daughter is writing a story i pause in the stairwell , hearing from her shut door a commotion of typewriter- keys like a chain hauled over a gunwale. young as she is, the stuff ...

*Thursday, June 10, 2010 by brooke*

**what can i compare middle school to?**

what can i compare middle school to? (use in metaphor), based on 6th, 7th, and 8th grade. for example playing monopoly 6th grade - buying properties, 7th grade- adjusting to the game, 8th grade - stress over money

*Sunday, May 16, 2010 by NEEDSHELP(:*

**Lifeskills**

Need help people making a resume for hw assignment!!? okay so I'm in 9th grade and have life skills .we have to make our own resume on the job we want. i want to study criminology and become a detective so i have to write stuff sorta pertaining to it. like in my summary i ...

*Saturday, May 8, 2010 by Angel*

**9th grade -physical science**

a the top of a hill a rollercoaster has 67,500j of kinetic energy and 290,000j of potential energy. gradually the roller coaster comes to a stop due to friction. if the roller coaster has 30,000j of potential energy when it stops, how much heat energy is generated by friction ...

*Monday, May 3, 2010 by robbie*

**9th grade**

at the top of a hill a rollercoaster has 67,500j of kinectic energy and 290,000j of potential energy. gradually the rollercoaster comes to a stop due to friction. If the rollercoaster has 30,000j of potential energy when it stops, how much heat energy is generated by friction ...

*Monday, May 3, 2010 by robbie*

**find my grade average**

-10% of my grade *82 -20% of my grade *100% *100% *100% *100% *100% *100% *100% *100% *82% -30% of my grade none -40% of my grade *76% reply as soon as possible. thank you!!!!

*Sunday, April 18, 2010 by magy*

**slis**

hi, im in the 9th grade and i need help I need help with my math. the following questions are? we are learning parallel lines and perpendicular lines. think you can help me? e) parallel to y=0 and passes through (1,2) f) perpendicular to x=-1 and passes through (3,5) g) slope ...

*Friday, April 2, 2010 by shanen desir*

**Math 157-1**

Use the data in the grade-distribution Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade Frequency A 2 B 8 C 11 D 2 F 1 How would the graph change if there were twice as many of each ...

*Friday, March 19, 2010 by Tyga*

**9th grade**

the debate club needs $240.00 to attend a debate tournament. the club decides to sell iced tea and lemonade at baseball games. iced tea will be sold for $.50 per cup and lemonade will be sold for $.80 per cup. write the equation to find how many cups of each beverag must be ...

*Wednesday, March 10, 2010 by silvia*

**9th**

Solve for: -20 <= 3x - 7 <= -2 The solution is xl __<= x <=__

*Wednesday, March 10, 2010 by Kimmie*

**9th grade**

Trains A and B are traveling in the same direction on parallel tracks. Train A is traveling at 100 mile per hour and train B is traveling at 125 mile per hour. Train A passes a station at 3:15pm. If train B passes the same station at 3:27 pm at what time will train B catch up ...

*Wednesday, March 10, 2010 by Kimmie*

**Biology**

What would happen to a protein in this example if the 9th base in the original DNA strand was changed to thymine ?

*Thursday, February 18, 2010 by Jannel*

**9th grade**

A reporter covering a naturalization ceremony wants to randomly select new citizens to interview. Out of the 200 new American citizens, 7 of them are from Ecuador, and 10 of them are from Kenya. What is the probability that the reporter will randomly select a person from ...

*Wednesday, January 13, 2010 by Basima*

**1st grade Math Fair**

My school is planning a Math Fair. Each grade will compete with same grade team members. The rules are: TO make it fun and use Al. math strands . The problem is I don't know where or how to begin this project. Can anyone help?

*Friday, January 1, 2010 by Joyce*

**9th grade**

Mr. Mist’s ramp broke so he tried to lift the his 150 Newton box of ungraded papers with a pulley system. Mr. Mist had to pull the rope in his system 3 meters. The papers were lifted into his car by the pulley system which lifted the box 1.5 meters, while Mr. Mist only used ...

*Saturday, November 14, 2009 by Kevin*

**9th Chemistry**

Why is there a big space in the periodic table between the 2nd & 3rd periods? The activity of the electrons is related somehow.

*Sunday, November 8, 2009 by Marie*

**9th grade Math**

Tittle: Police Officer Salary: $3,142/month Average work hours per week:40 School Loan:$15,000 Responsible for patrolling an assigned area to prevent and discover crime and to enforce regulations.Duties may include:conducting investigations,making arrests,and testifying in ...

*Thursday, November 5, 2009 by Ashley*

**Math**

Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade..Frequency A......2 B......8 C......11 D......2 F......1 How would the graph in Exercise 7 change if there were twice as many of each ...

*Sunday, November 1, 2009 by Anonymous*

**Math**

Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ike’s class. Grade..Frequency A......2 B......8 C......11 D......2 F......1 How would the graph in Exercise 7 change if there were twice as many of each ...

*Tuesday, October 27, 2009 by Anonymous*

**Algebra 1A**

From a base elevation of 8200 ft. a mountain peak in colorado rises to a summit elevation of 14588 ft. over a horizonal distance of 15842 ft. find the grade of the peak. The grade of the peak. The grade of the peak is %. Round to the nearest tenth as needed. Someone help ...

*Thursday, October 8, 2009 by Don*

**9th grade**

1. when non-human things are given simple human characteristics, this is an example of what? 2. however, when non-human things are given the ability to think, talk, and act consciously like humans, that is an example of what? 3. in what point-of-view is the narrator outside ...

*Sunday, May 31, 2009 by samantha*

**visual basic**

Cant get my message dialog box to display anbody see waht wrong with it? The message box is located in my if then else statement Dim total As Integer = 0 Dim gradeCounter As Integer = 0 Dim grade As Integer = 0 Dim average As Double = 0 ' sum grades in ListBox Do ' read grade ...

*Thursday, May 7, 2009 by cl*

**Romeo and Juliet (proofread essay )**

This question goes with the essay: Describe the reactions of Juliet's father and mother when Pais proposes marriage to their daughter. How are their opinions the same and how are they different? Essay: Lord Capulet, and Lady Capulet had the same reactions to Paris's proposal ...

*Thursday, April 23, 2009 by Hugs n kisses*

**9th grade**

A glass jar holds a single germ. After one minute, the germ splits into two germs. One minute after that, the two germs each split again, forming a total of four germs, continuing at this rate, a single germ can multiply to fill the whole jar in exactly one hour. Know this, ...

*Wednesday, April 1, 2009 by Marie*

**9th Pre Algebra**

I need help with exponents -n6 for n=2

*Monday, March 23, 2009 by Erin*

**9th grade**

A flagpole casts a shadow 27 feet long. A person standing nearby nearly casts a shadow 8 feet long. If the person is 6 feet tall, how tall is the flagpole

*Sunday, March 1, 2009 by ANdRAYiA*

**Social Studies/Missouri Facts**

Could you also check these thanks. Could I get a letter grade I'm in 9th grade 1. Who is the Governor of the State of Missouri? Answer: Jay Nixon 2. Name the two major cities in Missouri. Answer: St. Louis and Kansas City 3. Where is the capital of Missouri? Answer: Jefferson ...

*Thursday, February 19, 2009 by Tammie*

**Math**

you have 9 terms, the first is 0 and the 9th is 12 one of the outputs is 27 what is the equation for the pattern?

*Sunday, February 8, 2009 by Ted*

**9th chemistry**

I don't understand the formula for sodium hydrogen phosphate. Can you please tell me it and explain it?

*Friday, January 2, 2009 by alexa*

**URGENT!!!!9th grade tech**

i have my ISUs due tomorrow and if i don't get them in tomorrow they take off 50% the thing is idk wat 2 do 4 something its confusing me basically im supposed to find three different types of airplanes (being monoplanes, different models with the weird alphanumeric names?) and...

*Thursday, December 18, 2008 by Anonymous*

**9th grade science**

if the turns of the output gear over the turns of the input gear is equal to the number of teeth on the input gear over the number of teeth on the output gear, the input gear has 36 teeth and the output has 10, the output gear has turned twice as much as the input gear, how ...

*Friday, December 5, 2008 by Mr. Me*

**9th**

2(3a+2)=-8

*Wednesday, November 5, 2008 by visiree herrera*

**science 9th**

a toaster uses chemical energy to make toast ( true or false )

*Wednesday, October 29, 2008 by lacrosse*

**3rd grade**

There are 33 students in the band. There are 6 more fifth-grade students than third-grade students. There are an equal number of third- and fourth-grade students. How many third-grade students are in the band?

*Wednesday, October 8, 2008 by Kristina*

**english**

I need you to grade my paper for me . I don't have a car and I don't know the area well enough to ask anyone to grade it for me I just want you to grade it for me. and leave the red marks on it for me so I can correct it my self and send it back to me through email. If it's ok...

*Friday, October 3, 2008 by Bernadette*

**history**

explain 9th amendment

*Sunday, September 28, 2008 by karen*

**9th grade Social**

What modern tools do these early tools resemble? 1.> Small sharp tipped tool which is made of bone. 2.> Roughly the size of arrowhead, the 1.5 inch tip of this hand held tool is made of flint, a very hard rock. the wooden handle is about three inches long. 3.> X-rays ...

*Sunday, September 7, 2008 by Alisha*

**la 9th**

what are the emotions for the word precipice

*Thursday, September 4, 2008 by spencer*

**9th lit**

kith will only buy his groceries at bandbMarkets'the freshest store in town.

*Monday, June 23, 2008 by allen*

**Reading**

For summer reading i have to chose a fiction book, at 9th grade level or above and a global historial book (not usa) from paleolithic to 1550 AD. For global i have a list: Dance of the Tiger: a novel of the ice age Child of Morning Escape from Egypt The Murder of Tutankhamen: ...

*Friday, June 13, 2008 by Anonymous*

**English Expression**

What grade/year are you in? I'm in the first grade in middle school. I'm a first grader in middle school. I'm in the 7th grade. I'm a 7th grader. ----------------------- Are the answers all acceptable? Which one is commonly used? Can we use both 'grade' and 'year'?

*Friday, April 18, 2008 by John*

**working with data**

josephs final averages in science class are shown in the table below. homework % toward final grade-20% average-93 quizzes % toward final grade-20% average-92 tests % toward final grade-40% average-85 final exam % toward final grade-20% average-? what is the minimum score ...

*Sunday, February 24, 2008 by mike*

**Algebra II**

The problem states: Saturn is approximately 1.4x 10 to the 9th power kilometers from the Sun. If light travels at approx. 3.0 x 10 to the 5th power kilometers per second, how long does it take light from the Sun to reach Saturn? Express your answer in scientific notation. The ...

*Sunday, February 3, 2008 by Lucy*

**english**

when writing the word GRADE ONE in a sentence...would it be Grade One (where there both capital) Grade one (where only grade is capital) or grade one (where none are capital)

*Sunday, January 13, 2008 by spelling-grammer*

**English**

Any one got any book recommendations for a 8th to 9th grader?

*Sunday, October 28, 2007 by Anonymous*

**physics-energy conservation**

some people refer to heat as "low grade energy. a)how is low grade energy different from high grade energy? b)give two example of high grade energy When heating a cup of tea, which would be preferable...a stove with a burner on top, or a heating pad? High grade energy is ...

*Tuesday, May 8, 2007 by Emma*

**math / linear programming**

Two factories manufacture 3 different grades of paper. The company that owns the factories has contracts to supply at least 16 tons of low grade, 5 tons of medium grade, and at least 20 tons of high grade paper. It costs $1000 per day to operate the first factory and $2000 per...

*Tuesday, January 2, 2007 by Tim*

**algebra**

How do I do substitution equations out of the equations in the system, pick the one that has the least amount of funky numbers. then make that equation equal to either x or y(or any other variable dependin on what kind of systems youre doing, usually just x and y in algebra 1...

*Thursday, November 30, 2006 by Adraen*

**english**

I woul like to review my essay please? Post it. Can you please help me write that essay" A way to decrease your chance of becoming a victim of random ciolence". Hmmm. You have an assignment to write an essay, a teacher offers to review your essay, and you respond asking the ...

*Thursday, November 30, 2006 by louise*

**Writing**

What is the correct way to write this sentence? For the fourth-grade class hike, a lot if kids wore new hiking shoes, they were sturdy. Answer choices A For the fourth-grade class hike, there were a lot if kids they wore new hiking shoes that were sturdy. B For the fourth-...

*Sunday, March 26, 2017 by Ashley*

**Math**

If 6th term of a GP is 9375 and its 4th term is 375.find its 9th term?

*Saturday, March 11, 2017 by Sohaib*

**Albegra**

diego wrote one equation to find a missing angle measure.Write three more equations to solve the same problem 180 grade - -------=48 grade

*Thursday, March 2, 2017 by Isabella*

**math**

If the sum of the 4th term and the 7th term is 45.The sum of the 9th term is 117.Find the term when the sum of it is 600

*Thursday, February 16, 2017 by thembeka*

**Physics (9th)**

Sasha is driving straight and notices an antelope in the road a ways off. Determine the stopping distance (from the time she sees the antelope) for her car with an initial speed of 95 km/hr and an acceleration of -4.0 m/s2. Sasha's reaction time to start breaking is 1.0 second.

*Tuesday, January 24, 2017 by Jay*

**science- sound class 9th**

aditi clapped her hands near a cliff and heard the echo after 4 seconds. what is the distance of cliff from her if the speed of sound is taken as 346ms-1

*Tuesday, January 10, 2017 by manisha*

**9th grade algebra (recursive formula)**

Can you explain how to find a sub 1 in the following problem? 1. Given 2 terms in an arithmetic sequence, find the recursive formula. a sub 18 = 3362 , a sub 38 = 7362 Steps: a. Find difference: (7632 - 3362)/(38 - 18) = 4000/20 = 200 b. plug into recursive formula: a sub n = ...

*Tuesday, January 10, 2017 by Alexis*

**computer,science, java**

Inorder to motivate the employees, the company has decided to announce the different types of bonus depends up on the employee’s Grade. If the employee belong to Grade A bonus=20% basic Grade B bonus=15% basic Grade C bonus=10% basic Grade D bonus=7% basic Grade E bonus=5% ...

*Sunday, January 1, 2017 by sa*

**science**

Write a java program using classes and object to read the em[loyee code (Integer), Imployee name (string), Basic salary )double), Category (Character)then calculate the bonus(double)and the total salary(double)eligible for each employ. The output should have the employee code...

*Sunday, January 1, 2017 by Hala*

**Pre Algebra Review**

Thirty-five students belong to the science club. This 1/4 the number in the 5 sections of the eighth grade. How many students are in the eight grade? How many in each section if each section has the same number of students?

*Monday, December 5, 2016 by Bryan*

**Math**

In math class, a student has an average grade of 85% for five tests so far. What grade must that student earn on the next test to reach an average grade of 90% for all six tests?

*Thursday, December 1, 2016 by Sophia*

**Math**

The average score on a recent test was 75%. One of the students earned a grade of 93% while another student earned a grade of 78%. A total of 23 students took the test. Find the average grade of the remaining 21 students.

*Thursday, December 1, 2016 by Emily*

**accounting**

provided accounting services to dress shop $8,500. payment to received on july 9th how would this journal entry be posted to the general journal.

*Sunday, November 13, 2016 by maria*

**9th grade algebra (completing square)**

Can you check the following? A1. (2x + 3)^2 = 25 sqrt(2x + 3)^2 = +-sqrt(25) 2x + 3 = +- 5 2x + 3 = 5, 2x + 3 = -5 2x = 2, 2x = -8 x = 1, x = -4 {-4, 1} A2. x^2 + 14x + 45 = 0 x^2 + 14x + __ = -45 + __ x^2 + 14x + 49 = -45 + 49 (x +7)^2 = 4 sqrt(x+7)^2 = +- sqrt(4) x + 7 = +- ...

*Wednesday, November 9, 2016 by Alexis*

**MATHS**

The 9th and 22nd term of the AP are aw and 55 respectively. find the sum of the 70 term

*Tuesday, November 1, 2016 by PATIENCE JOHNBEE*

**Personal question**

How would you deal with someone that has been bullying you since fourth grade? I have talked to adults talked to councelors and I have talked to his mother who happened to be my fifth grade teacher yet he is still at it. I don't want to seem like a baby and file a no contact ...

*Wednesday, October 26, 2016 by Madeline*

**MATH**

The forty and the 9th term of an AP is -3 and 12 respectively. Find the common difference and some of the frist 7th term

*Monday, October 3, 2016 by JOHN*

**Science**

So I have an 89% in my science class and we took a test worth 15 points. I only got 8 correct which is an F. I have 2 A's, a B, and a D as the other grades in the grade book. How will this F affect my grade? I need it to stay a B

*Tuesday, September 27, 2016 by Laila*

**Math**

A fertilizer covers 5/8 square foot in 1/4 hour. i don't understand how to work out this math problem. By the way i'm in 6th grade but technically doing advanced math so i'm doing 7th grade math. I don't know how to do this

*Wednesday, September 21, 2016 by niki*

**Math**

In Marissa's calculus course, attendance counts for 10% of the grade, quizzes count for 20% of the grade, exams count for 55% of the grade, and the final exam counts for 15% of the grade. Marissa had a 100% average for&#...

*Monday, September 12, 2016 by Anonymous*

**Science**

A body is moving with uniform accelaration goes 65 meter 5th second and 105 meter in 9th second. How far will it go in 20th seco d

*Friday, September 9, 2016 by kabak tamo*

**9th grade algebra**

Can you explain how to find the solutions to the following system of equation problems? Graph f(x) and g(x) to find the solution to the equation f(x) = g(x). Approximate the answer when necessary. 1. f(x) = -2/3x +4 and g(x)= x - 6 Ans: Step1 graph lines. f(x) has y-int of 4 ...

*Wednesday, September 7, 2016 by Alexis*

**Math**

A nut wholesaler sell two types of mixes of cashews and peanuts. He makes low-grade mix containing 8 pound of peanuts and 4 pound of cashews and high-grade mixer containing 6 pound of peanuts and 6 pound of cashews. Let x and y denote the numbers of low-grade and high-grade ...

*Wednesday, September 7, 2016 by Amartya*

**9th Grade Biology**

Cell theory is based on a series of discoveries. In 1655, Robert Hooke coined the word "cell" from his investigations of cork cells. Almost two hundred years later, Schleiden and Schwann proposed the cell theory that states that: All life forms are made from one or more cells...

*Tuesday, September 6, 2016 by Mellisa B*

**Math**

8 to the 12 power over 8 to the 9th power equals 8 to the what power?

*Thursday, September 1, 2016 by Damien*

**Math**

When you have a 76% in math and you need to get your grade up to a b and daily assignments are 10% and quizzes are 80%. How will I get my grade up to a b in 5 weeks

*Friday, August 26, 2016 by Lola*

**RE**

I am going to take the Regents Algebra 1(Common Core)and I'd like to know whether a certain procedure of mine could lower my grade. When solving linear equations I do this: x+2=20 I just pass the 2 negative to the other side without subtracting it from the left . Can this ...

*Friday, July 22, 2016 by Liah*

**math**

Are trigonometric functions taught in 11th grade, if so ,is it wrong that i wasn't tought that topic in 11th grade????plz help!!!!

*Tuesday, July 12, 2016 by Lauren*

**arithmetic sequence**

find the 9th term of the arithmetic sequence with Asub1=10 and =1/2

*Wednesday, July 6, 2016 by alex*