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October 20, 2014

October 20, 2014

Post a New Question | Current Questions

**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*

**math**

John checks every 8th item for color, and Colin checks every 12th item for durability. If 1,920 items passed by both of them, how many items were checked by both John and colin? How do I figure this?
*Wednesday, January 25, 2012 at 8:28am*

**6th grade math**

how to solve w/3=17
*Sunday, January 22, 2012 at 9:30pm*

**arithmetic**

the sum of the 4th and 8th terms is 10, and the sum of the 6th and 12th terms is 22. Find the first three terms.
*Thursday, January 19, 2012 at 11:57am*

**6th grade math**

1/4 * 1/2 =4D
*Monday, January 16, 2012 at 6:46pm*

** 5 th grade algebra**

5a-a-2a=18
*Saturday, January 14, 2012 at 10:17pm*

**Question **

I'M CURIOS SO DON'T JUST JUDGE ME AND BE RUDE i'M REALLY CURIOUS AND i FORGOT TO ASKED THIS QUESTION. DO NOT JUDGE ME!!!! Do I start taking SAT's and ACT's in grade 10th or 11th/12th grade???? I'm really curious.
*Friday, December 30, 2011 at 12:29pm*

**Statistics**

2. You are given the following data. Number of Absences Final Grade 0 93 1 90 2 79 3 66 4 60 5 56 - 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. Show all ...
*Friday, December 30, 2011 at 12:31am*

**pre-algebra**

find the product: (4k to the 5th power)(-2k)to the 3rd power. 5th power is inside the parenthesis and the 3rd is outside the parenthesis. Is it -32k to the 8th power or -32k to the 2nd power?
*Sunday, December 18, 2011 at 1:42pm*

**9th grade math**

simplify x^5-x^3+x^2-1-(x^3-1)(x+1)^2/(x^2-1)^2
*Wednesday, December 7, 2011 at 12:38pm*

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