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November 20, 2014

Homework Help: 8th Grade

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10 grade algebra
solve 10(x+5)=130
Tuesday, March 26, 2013 at 7:29pm

10 grade algebra
Solve the equation 2(x =10)=80
Tuesday, March 26, 2013 at 7:05pm

English
i have a hard time calculating my grade & am in college. Please tell me the grade I have so far & will have, thank you!365 points in the course is needed. Lecture exams and quizzes are worth about 60% of the total grade &90 ≤ A 80 ≤ B < 90 70 ≤ C < 80 ...
Monday, March 11, 2013 at 12:50pm

6th grade math
n/4+32=72
Tuesday, February 26, 2013 at 7:36am

5th grade math
Is 3/9 <,>,= to 9/14?
Monday, February 25, 2013 at 7:13pm

6 grade math
(100-7•2+3)÷10 =
Tuesday, February 12, 2013 at 10:33pm

math 4th grade
my mistake will it be 8
Tuesday, February 12, 2013 at 4:36pm

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-...
Sunday, February 10, 2013 at 10:42pm

Algebra
simplify 9to 6th power times 3 to the 7th power all over 9 to the 8th power times 3 to the 6th power
Sunday, February 10, 2013 at 9:02pm

Math
Instructions Suppose we have a sequence (1), (2, 3), (4, 5, 6). (7, 8, 9, 10), (11, 12, 13, 14, 15), ... where (1) is the first element of the sequence, (2, 3) is the second, etc. What is the first number in the 100th element of the sequence? Be sure to do more than answer the...
Saturday, February 9, 2013 at 4:04pm

Science 8R
What is Combustion? this is not homework (please give me a good definition for 8th graders like me to understand) BTW - I'm creating a study guide for the NYS Science Test I'm taking at the end of the year. We started taking notes in my science class that we can use to...
Sunday, February 3, 2013 at 3:59pm

math
franklin school has 3 boys for every 4 girls in the fifth grade.there is 140 students in the fifth grade. A. how many are boys and how many are girls??? pleassseee helpppp meeeeee!!!!
Saturday, February 2, 2013 at 12:12pm

Geometry-8th gr
Find KN and LM. In triangle LKM, angle L is bisected. Line segment LK is 11, line segment KN is x-4, line segment NM is 5.4, and line segment LM is 2x + 1.3 (there is a drawing of this triangle) Thanks.
Friday, February 1, 2013 at 5:48pm

Geometry-8th gr
The perimeter of triangle ABC is 120. LIne segment BD bisects <B. Line segment AD= 15, and line segment DC= 21. FInd AB and BC. Thanks.
Friday, February 1, 2013 at 12:12pm

Geometry -8th gr
Given: triangle ABC ~ triangle PQR, m<A = 75 degrees, m<P = (5x + 7y) degrees, m<R = (3x + 4y) degrees, and m<B =( 2x + 9y) degrees. FInd m<R. Thanks
Friday, February 1, 2013 at 12:11pm

Geometry-8th gr
Can you please help me with this question? 1.) Given: triangle ABC ~ triangle XYZ, m<A= 50 degrees, m<X= (2x +5y) degrees, m>Z=( 55 + y) degrees, and that m<B=(102-x) degrees. Find m<Z. Thanks.
Thursday, January 31, 2013 at 6:54pm

4th grade math
In helping my 4th grade grandson last night with his math, he had problems like this 93 * 18. I asked what the asterisk meant and he said the teacher said to "figure it out"
Wednesday, January 30, 2013 at 11:38am

Math
There are 12 girls on a gymnastics team. Less than 1/4 of the girls are in second grade. How many girls on the gymnastics team could be in second grade?
Monday, January 28, 2013 at 9:00pm

8th Grade Math
I need help please. I answered (c)incorrectly. Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the ...
Friday, January 25, 2013 at 7:07pm

8th grade Math
need help please. I answered (c)incorrectly. Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the ...
Friday, January 25, 2013 at 6:44pm

Math - 8th Grade
I need help please. I answered (c)incorrectly. Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the ...
Friday, January 25, 2013 at 6:02pm

Math - 8th Grade
I need help please. I answered (c)incorrectly. Chantal and Julia ride horses in the same race. Chantal's horse finishes in one minute and 59.53 seconds. If Julia's horse runs 2.25 percent slower than Chantal's, how long does it take Julia's horse to finish the ...
Friday, January 25, 2013 at 5:15pm

6 grade Math
How do I divide this ... 3 divided by 1/2
Wednesday, January 23, 2013 at 6:23pm

Physical Science
The distance from earth to the sun is 1.5x10 to the 11th power minutes and light travels at a speed of 3.0x10 to the 8th power m/s. How long does it take sunlight to reach the earth? Give answer in minutes and seconds.
Monday, January 21, 2013 at 9:26pm

4th grade math
How do you solve 41/2-1/4=?
Sunday, January 20, 2013 at 4:22pm

9TH GRADE MATH
IF C=2M+D THEN M=
Tuesday, January 15, 2013 at 5:43pm

math 7 th grade asap
6(b-4)=
Monday, January 14, 2013 at 10:03pm

9th grade algebra
2x^2+5x+2
Thursday, January 10, 2013 at 9:24pm

statistics-?mean average with lowest number out?
A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?
Monday, January 7, 2013 at 3:26pm

statistics-?mean average with lowest number out?
A mean average of 60 on 7 exams is needed to pass a course. on his first 6 exams, Adam received grades of 46,74,70,59,66 and 72. if his lowest grade of the exams already taken is to be dropped,what grade must he receive on his last exam to pass?
Monday, January 7, 2013 at 2:46pm

math
In the year 2000,approximately 169,000,000 personal cmputers were used in the US. What is this number expressed in scientific notation? I moved the decimal point 8 times to the left so My answer I got was 1.69x 10to the 8th. Is this correct Thanks
Sunday, January 6, 2013 at 7:39pm

World history- does this sound okay?
if you had to give queen Elizabeth the first a grade on the enlightenment principles what grade would you give and why? I think I would give her a B bc for the most part she was a very big influence on the enlightenment era and she enabled quite a bit for us today. she changed...
Thursday, December 20, 2012 at 2:33pm

7 th grade math
How many 4/5 are in 1 ?
Wednesday, December 12, 2012 at 10:05pm

math 6th grade
what does y=x
Tuesday, December 4, 2012 at 11:51pm

Math 5th grade
9K=414
Tuesday, December 4, 2012 at 7:14pm

maths
the 8th term of an a.p is 37 and 12th term is 57 .find the a.p please help this questions .please help.
Monday, December 3, 2012 at 6:23am

math
Suppose that you are taking a course that has three exams which count for three-fifths of your grade and a final which counts for two-fifths of your grade. On your first three tests your scores on were 75, 80, and 74. To get an B in the course, you must have an average of at ...
Sunday, December 2, 2012 at 2:11pm

5th grade math
i need help
Tuesday, November 27, 2012 at 5:48pm

5th grade math word problems
Frank saved 50% by purchasing his airline ticket early. His wife paid full price. If their total was $294 how much was Franks's ticket only? Can someone please explain this to me in 5th grade terms.
Wednesday, October 24, 2012 at 2:40pm

Math Statistics
The table below shows Rico’s grades during the third term in four subjects. Subject Units Grade Math 1.5 98 Science 2 97 English 1.5 95 A.P. 1 99 What was Rico’s average grade in the four subjects?
Friday, October 19, 2012 at 11:30pm

Statistic
Number of Absences Final Grade 0 93 1 93 2 77 3 68 4 65 5 54 - Find the correlation coefficient for the data. I got this part of my answer. I believe the answer to be -0.9767 I am just going crazy with the second part. - Find the equation for the regression line for the data, ...
Thursday, October 18, 2012 at 9:18pm

4 grade math
what the rule for 58,-2
Sunday, October 14, 2012 at 4:50pm

c++
Your Mathematic school teacher want to use a program that can read the name and the mark of a student. Your teacher want the program to automatically find the grade of the mark and display the result(name, mark and grade). Help your teacher to develop a program that can solve ...
Thursday, October 11, 2012 at 5:16am

7th Grade x y input output tables
i need help with x and y input output tables for 7th grade i dont understand what 5x means or what to do! Math hw problems: 1. y=4x+3 x=1,2,5,10,20 2.d=3.5t t=1,2,5,10,20 Please help ASAP!!!!!
Tuesday, October 9, 2012 at 7:14pm

statistics
You are given the following data. Number of Absences Final Grade 0 95 1 91 2 82 3 69 4 67 5 58 - Find the correlation coefficient for the data. - Find the equation for the regression line for the data, and predict the final grade of a student who misses 3.5 days.
Thursday, October 4, 2012 at 11:05am

7th grade math help quick
11/12 + (-2/3) = ?
Wednesday, October 3, 2012 at 8:42pm

math
there are 15 boys and 18 girls in fifth grade. Find the ratio of boys to girls in fifth grade.(how do I get the answer) can someone show me how to work the problem
Monday, October 1, 2012 at 8:52pm

MATH
tHERE ARE 4 FIFTH GRADE CLASSES IN A SCHOOL. EACH CLASS Has 24 STUDENTS. fOR EACH GYM PERIOD, TWO FIFTH GRADE CLASSES TAKE GYM TOGETHER. tHERE ARE 10 GYM PERIODS IN ALL DURING SCHOOL WEEK. wHAT INFORMATION IS NOR NEEDED TO FIGURE OUT HOW MANY TOTAL STUDENTS TAKE A GYM PERIOD ...
Monday, October 1, 2012 at 8:01pm

2nd grade math
____= 8+2?
Wednesday, September 26, 2012 at 3:01pm

math
5th grade equstions
Tuesday, September 25, 2012 at 9:04pm

6th grade math
what does the |#| mean? Thanks
Sunday, September 23, 2012 at 10:29pm

6th grade math
Simplify: |15|
Sunday, September 23, 2012 at 10:23pm

6th grade math
Yes I am not smarter than a 6th grader. How do I show the math and in the simplest form for the following: A sixth grade class has 100 sheets of lightweight paper. They use 3/4 of the paper for a collection of class poems. What is the total thickness of the paper they use?
Monday, September 17, 2012 at 7:27pm

7th grade math
What is the difference? |-9| - |13| =? A)-22 B)-4 C)4 D)22
Sunday, September 16, 2012 at 4:49pm

6th grade math
9 + x = 17 I know that x=8 but how did you get it Thanks
Friday, September 14, 2012 at 6:24pm

7th Grade Math
(-13) + (-1)
Friday, September 14, 2012 at 9:41am

MATH
THE VALUE 2 TO THE 8TH POWER - 1 IS DIVISIBLE BY THREE PRIME NUMBERS. WHAT IS THE SUM OF THE THREE PRIME NUMBERS?
Tuesday, September 11, 2012 at 10:18pm

6th grade math
f + (–15) = –32
Tuesday, September 11, 2012 at 12:06pm

math
I'm in sixth grade What is the value of |–46| ?
Monday, September 10, 2012 at 12:57pm

math
y – (–19) = 25 i'm in sixth grade
Monday, September 10, 2012 at 12:45pm

7th grade math
-6(2r-4)
Tuesday, September 4, 2012 at 7:01pm

6th grade math
what is 13/16 minus 1/4?
Tuesday, September 4, 2012 at 5:57pm

9th grade chemistry
what is the
Monday, September 3, 2012 at 1:09pm

usiness finance
On May 12, Bob Campbell accepted a $5,000 note in granting a time extension of a bill of goods bought by Rick Wean. Terms of the note were 8% for 120 days. On July 8th, Bob needed to raise cash and discounted the note at Rick’s bank at a discount rate of 9%. Calculate Bob...
Friday, August 31, 2012 at 7:50pm

Business and math question
Isabella is hoping to get an A on her college algebra course. With just the final exam left to take, she currently has an average of 92 on her exercises. The quizzes count for 40%, exercises count for30% of the class grade. What is the minimal grade that Isabella must have on ...
Thursday, August 30, 2012 at 2:11pm

Business
Isabella is hoping to get an A on her college Algebra course. With just the finaL exam left to take, she currently has an average of 85 on her quizzes and average of 92 on her exercises. The quizzes count for 40%, exercises count for 30% of the class grade. What is the minimal...
Thursday, August 30, 2012 at 11:07am

Economics
Brian is taking three courses this semester: economics, statistics, and finance. He has decided to spend 19 hours per week studying (in addition to attending all his classes) and his objective is to maximize his average grade, which means maximizing the total of his grades in ...
Monday, August 27, 2012 at 3:29pm

Calculus
Find the first 4 terms and the 8th term of the recursively-defined sequence. 4. v1 = 0.75 and vn = (-2)vk-1 for n>1 A. 0.75, 1.5, -3, 6; -192 B. -1.5, -3, -6, -12; 192 C. -1.5, -3, -6, -12; -192 D. 0.75, 1.5, 3, 6; -192 E. 1.5, 3, 6, 12; 192 F 0.75, -1.5, 3, -6; 192 Can ...
Tuesday, July 10, 2012 at 5:24pm

math
not sure if this had to do with math but my professor gave us this last hw assignment that i don't understand at all. It has to do with the grade scaling he does. 4x Exams = 37450 HW = 9362 Final = 16385 Lab = 23407 Recitation = 7022 Total Points = 93626 He asks whats the ...
Thursday, July 5, 2012 at 8:35pm

English 7 - "Dear Reader" Letter Check
Can you check my letter. It's a project for English. We are making our writing portfolios. I'm almost done I just have to do this. Dear Reader, This year I done some great improvement as a writer. I add great vocabulary in my pieces. When I'm reading, it improve my...
Thursday, June 7, 2012 at 10:16pm

Spanish 8th grde
I had to answer the questionsPlease check ¿Qué compraste la semana pasada? Compré una mochilla la semana pasada. ¿Bailaron Uds.? Sí, bailamos.
Monday, May 28, 2012 at 2:30pm

Algebra
The final grade for a particular course is calculated by dividing total points earned by total points available. There are 120 points available in the first half of the course, and 140 points in the second half of the course. If a student earns 81% in the first half of the ...
Monday, May 28, 2012 at 12:46pm

11th grade math
-2x+7+9x-4
Thursday, May 24, 2012 at 10:51am

8 grade
27.6 x 5.2 my answer is 138.00 is this right
Monday, May 21, 2012 at 5:54pm

statistics
Sign in Assume that the mean score on a certain aptitude test across the nation is 100, and that the standard deviation is 20 points. Find the probability that the mean aptitude test score for a randomly selected group of 150 8th graders is between 99.5 and 100.5. Sign in
Sunday, May 20, 2012 at 6:24pm

6 grade math
Can you help me with this integer problem? -8+6+(-10)+(-2)*(-10) is it 8????
Tuesday, May 15, 2012 at 6:17pm

Math
A student got these marks on 7math tests: 91%,75%,95%,,80%,83%,86%,68% What mark will the student need on the 8th test to make each statement true? a)The mean of the tests is 84% b)The mode of the eight tests is 86% c)The median of the eight tests is 84%
Friday, May 4, 2012 at 11:59am

2nd grade math
4/6 of 18 is?
Monday, April 30, 2012 at 5:23pm

STATS
recent 10K run the finisher are norm dist with a mean of 55 min and stand dev of 13 A) determine the percentage of finishers with times between 45 and 75 min B) determine the percentage of finshers less than 80 min C) obtain the 30th percentile D) find the 8th decile
Friday, April 27, 2012 at 10:56pm

Math
After a Math test, each of the twenty-five students in the class got a peek at the teacher's grade sheet. Each student noticed five A's. No student saw all the grades and no student saw his or her own grade. What is the minimum number of students who scored A on the ...
Thursday, April 26, 2012 at 5:24pm

to ms.sue
thank you. how do you know im in 4th grade?
Tuesday, April 17, 2012 at 6:07pm

Math
I need help trying to write out these binomial expansions: they all need to be raised to the 8th power. Thanks 1. (x + y) 2. (w + z) 3. (x - y) 4. (2a + 3b) - Now explain how your answer for #1 could be used as a formula to help you answer each of the other items. In each case...
Monday, April 16, 2012 at 12:46pm

Government
Need a response to all 3 statements 1.The US Supreme Court has ruled that the death penalty does not violate the 8th Amendment protection against "cruel and unusual punishment". Still this remains a highly controversial topic. How do you feel about the death penalty...
Tuesday, April 3, 2012 at 3:02pm

Math
Of the 300 tickets 240 were sold to sixth grade studentss What percent of the total number of tickets sold were sold sixth grade students
Saturday, March 31, 2012 at 10:51pm

math
The 8th term of ap is 5time the 3rd term, while the 7th term is greater than the 4th term, write the first 5 term of the ap
Friday, March 30, 2012 at 3:45pm

6th grade math
35/(2+5)(2^3)-15
Wednesday, March 28, 2012 at 9:49pm

statistics
Calculate the z-score for each set of data. Determine who did better on her respective test, Tonya or Lisa. Student English Test Grade z-Score Student Math Test Grade z-Score John 82 Jim 81 Julie 88 Jordan 85 Samuel 90 Saye 79 Tonya 86 Lisa 82 Mean 86.50 81.75 St. Dev. 3.42 2...
Thursday, March 22, 2012 at 3:03pm

4th grade math
what is 5/6 of 288
Monday, March 12, 2012 at 3:20pm

4th grade math
what is 5/6 of 288
Monday, March 12, 2012 at 2:50pm

Math - HELP !
there are 50 students in the seventh grade , 62 percent of these students are involved in the drama club.how many seventh grade students are in the drama club ?
Saturday, March 10, 2012 at 11:15pm

1st grade
I am helping my little sister. SHe is in the first grade and learning about Abraham Lincoln. Her questions are- 1. What year was Abe president. What year did he die. 2. How old was he when he died? 3. When did he marry ____. Who did he marry. 4. Who made the first flag? 5. ...
Friday, March 9, 2012 at 1:55pm

math 2nd grade
what is 3/5 of 10? what is 1/3 of 12?
Monday, March 5, 2012 at 10:58pm

6th Grade History
What is the crucifixion?
Monday, March 5, 2012 at 3:46pm

math
In polk middle school, 45% of the students are 6th graders, 35% of the students are 7th graders and the remainder are 8th graders. Would a circle graph of this data that had 3 sections each with a central of 120% be misleading?
Wednesday, February 29, 2012 at 9:23pm

4th grade
8+4
Tuesday, February 28, 2012 at 9:20am

statistics
12. A statistics student received a grade of 85 on a statistics midterm. If the corresponding z score equaled +1.50, and the standard deviation equaled 7, what was the average grade on this exam? a. 95.5 b. 74.5 c. 78.0 d. Cannot determine without knowing how many took the ...
Sunday, February 26, 2012 at 3:08pm

Physics
On June 9, 1988, Sergei Bubka broke the world pole-vaulting record for the 8th time in four years by attaining a height of 6.14 m. How long was Bubka in the air for this record setting vault?
Monday, February 20, 2012 at 1:03pm

statistics
2. The grades on a statistics midterm exam were normally distributed with a mean of 72 and a standard deviation of 8. a. What is the proportion of students received a B grade. b. What is the proportion of students that failed the exam? c. What is the grade of the 92nd ...
Thursday, February 16, 2012 at 6:49am

Maths
The 3rd term of an AP is 10 more than the first term while the fifth term is 15 more than the second term.find the sum of the 8th and 15 term of AP.if the 7th term is seven times the first term.
Wednesday, February 15, 2012 at 6:32pm

math
Looking at a table of numbers and there is a pattern starting with the number 501, then shaded numbers every 8th number starting with 509. How do I use place value to describe how the numbers change?
Monday, February 13, 2012 at 8:54pm

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