Hi, I was working on my math homework and I was stumbling on these problems. I tried looking at the solutions but my answers were completely off. Here are the ones I'm stuck on: If vectors O(0,0,0), A(6,0,0), B(6,-sqrt(24), sqrt(12)),

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1. math

Hi, I was working on my math homework and I was stumbling on these problems. I tried looking at the solutions but my answers were completely off. Here are the ones I'm stuck on: If vectors O(0,0,0), A(6,0,0), B(6,-sqrt(24), sqrt(12)), and C(0,-sqrt(24),
2. math

Hi, I was working on my math homework and I was stumbling on these problems. I wanted to double check my answers that I have; I also could not answer 5. If vectors O(0,0,0), A(6,0,0), B(6,-sqrt(24), sqrt(12)), and C(0,-sqrt(24), sqrt(12)) form a square. 1)
3. Math

It took Esteban 1 hour and a half to complete his math problems for homework. He spent 3 to 5 minutes working each problem. Which is a reasonable number of problems that Esteban completed for homework? A.10 B.12 C.15 D.20 D? Shaquille O' Neal height
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Ivan finished es025-1.jpg of his math homework problems and all 3 questions for his science homework before dinner. If he finished a total of 43 problems before dinner, what is the total number of math homework problems he was assigned?
5. math

You were given 10 math problems for homework. You completed 310 of them at school. Which equation shows how to find the fraction of the problems you still must do to complete your homework?
6. Math

Ivan finished 4/5 of his math homework problems and all 3 questions for his science homework before dinner . If he finished a total of 43 problems before dinner , what is the total number of math homework problems he was assigned?
7. Math

on tuesday evening randy spent 18 more minutes working on his math homework than he spent working on his philosophy readings. If he spent a total of 126 minutes on those two subjects then how much time did he spend on his math homework?
8. Math

Kenneth has 22 math problems to do for homework. He has 12 problems done.How many more problems does he left?if he completes 1 problem every minute,how many more minutes does he have to work?
9. algebra homework help

student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. X= # of problems 11= # of missed problems 65% of correct
10. Math (Combinatorics)

40 students attended the brilliant summer camp at Stanford University. "k" of the students at the camp are working on math problems and the others are working on non-math problems. One of the camp mentors noticed that whenever all the students were
11. Math

Nick has done 35% of his homework. He had been working for 28 minutes. How long will it take him to finish his homework?
12. internet/math

this website video isnot working please help I have to finish my homework. it was working in school>
13. Math

HELLO, THIS IS MY FIRST TIME USEING THE JISKHA WEBSITE. I NEED HELP WITH MY HOMEWORK. PLEASE HELP ME WITH MY HOMEWORK! THANK YOU! _______________________________________ MY MATH HOMEWORK: 30 DIVIDED BY 10 56 DIVIDED BY 6 55 DIVIDED BY 10 30/10=3 55/10=5.5
14. Algebra

Solve Find (f o g)(-6) when f(x)=4x+4 and g(x)=6x^2-3x-6. I originally came up with 918, but the answer is 916. Obviously I was close, but could someone tell how to get 916. I am studying for a test and am re-working my homework problems. Thanks.
15. math conversion factors

1. Homework problems solved in 2 hours 30 minutes at a rate of 26 problems an hour.
16. Math

Shelly is working 250 math problems and she wants to finish in 6 days. If she works the same number of problems each day for 5 days how many problems will she have left to work on day 6?
17. math

I'm working on some review problems in Math and having trouble on the critical thinking one. The question says is it possible for 2 numbers to have the same LCM and GCF? Explain. I'm not sure where to begin on this. I know how to do both types of problems
18. statistics

A professor is interested in determining whether assigning mandatory homework affects students’ grades. He is currently teaching two sections of the same class; in one class, he assigns mandatory homework problems, while in the second class, he just
19. math

Mike completed 19 math problems before dinner for tonight’s homework, and he completed x problems after dinner. Write an expression to determine the total number of problems he completed.
20. alison

I have to do a lot of homework problems like this but I do not really understand how to do any of them. Can someone show me how to do this one so I can do the rest of my homework problems on my own? Thanks. Let A = (a, f(a)) and B = (b, f(b)) Write an
21. alison

I have to do a lot of homework problems like this but I do not really understand how to do any of them. Can someone show me how to do this one so I can do the rest of my homework problems on my own? Thanks. Let A = (a, f(a)) and B = (b, f(b)) Write an
22. Chemistry 1

We are working on molarity of a solution in my class, and I am a little stumped on how to set the problems up. Here is one question from my homework. How many grams of NaCl are needed to make 575mL of 1.5 M NaCl solution? Thank you in advance :)
23. intermediate algebra

Hello, I am so stuck...I even watched two hours of videos, but it didn't really help me:( I am working on these kinds of problems... 3x-4|+5>32 And...as part of our homework, we have to enter it on the computer in interval notation. So I know that I
24. Math Homework Help

Hello! I'm having problems with these two math problems. I've tried to solve them but I got nowhere. If someone could please help me, that would great! Thanks again! :) Directions: Verify the identity for each problem. 1.) cot^2y(sec^2-y-1)=1 2.) cosx+sin
25. algebra

janice noticed that the number of problems she did for homework (x) formed a linear relationship with her quiz score (y). When she did 3 problems she earned a 25% and when she did 8 problems she earned a 60%. Write an equation to represent this situation.

Good evening ~ I have 2 questions. Kelsey was assigned math homework. He was given 8 word problems to solve. He estimated that it would take him 5 mins. to solve each problem (THAT WOULD TAKE 40 MINS. FOR KELSEY TO COMPLETE HIS MATH HOMEWORK) ? HOW TO
27. math 012

Hi, I am trying to do homework for my math 012 class- solving linear equations- and I need help with 9 of the problems. I would really appreciate any help with this. I can do the problems and send them to you, or however you prefer. Thanks!
28. math-

bill spent 7 9/10 hours working on is reading and math homework. if he spent 5 3/6 hours on his reading homework, how much time did he spend on his math homework?
29. Math

Please check my answer to see if I got it right. Braden has 1 hour of math homework to do. He spends 2/5 of this time complaining about how much he hates math, 1/3 of the total time looking for his calculator. How much time does Braden actually work on his

hello: i am considering going back to school to get a degree in business. i have borrowed a book from a friend who is already in the program. meanwhile: i sometimes have trouble working my way through the chapter questions. he said that they were not given
31. fractions

my teacher gave us some fraction problems for homework, but I'm confused about how to go about solving the problem. The problem is what is 2/4 of 8. Can you show me the steps so I can do the rest of the math problems? 2/4 reduces (or simplies if you
32. complaint

I would like to complain about the service we're getting here. I'm sure you guys work very hard, but the last few times I have posted a question on your forum I didn't get an answer until days later (not even from a Jiskha volunteer, a student), long after
33. algebra homework help

A student missed 3 problems on a Physics test and received a grade of 94%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. my answer is 5 questions
34. Math 8R - help!!!!!!!!!!!!!

Multi-Step Equations Solving Equations with Variables on Both Sides 1) 5y + 4 = 4y + 5 11a + 9 = 4a + 30 2w + 3 = 4w - 5 2) 3a - 10 = 4 + a 2x - 1 = x - 3 6n + 4 = n - 11 3) 29r + 4 = 28 + 13r 7x - 11 = -19 + 3x 4) b + 3 = 2b - 7 I'm having a bit trouble
35. Math Please Check!!

Please check my answer to see if I got it right. Thanks. Braden has 1 hour of math homework to do. He spends 2/5 of this time complaining about how much he hates math, 1/3 of the total time looking for his calculator. How much time does Braden actually
36. Math

Samantha has homework in five subjects tonight. She has 15 minutes of science, 20 minutes of math, 30 minutes of reading, 20 minutes of writing, and 15 minutes of geography. If her mom walked in randomly while she was doing her homework, what subject would
37. writing skills

Do your homework before applying for any job. If you rewrote sentence 5 beginning with Be sure that you the next words should be 1 got done your homework 2 got your homework done 3 had done your homework 4 did your homework 5 have done your homework answer
38. algebra homework help

A student missed 8 problems on a Chemistry test and received a grade of 47%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. My answer is 15 question were on the test is this
39. Math

An appliance store sells three brands of TV sets, brands A, B, and C. The profit per set is \$30 for brand A, \$50 for brand B, and \$60 for brand C. The total warehouse space allotted to all brands is sufficient for 600 sets, and the inventory is delivered
40. writing

I want to know what is wrong in the following sentence: After six months on the job, he faced problems in his first recruitment effort; however, if he solves these problems, the new hires should be able to start working by July.
41. poetry

I need to recite this poem in front of the class and i have to add at least three more lines to it. does anyone have any suggestions? Math is the thick red book, Sitting there, waiting for you to open it, Just waiting for your sigh. Math is working two
42. english

Do your homework before applying for any job. if you rewrote the sentence beginning with (Be sure that you) the next words would be? 1)got done your homework 2)got your homework done 3)had done your homework 4)did your homework 5)have done your homework
43. Algebra

-Alfonso can write 100 practice problems for the math team in 20 hours, Beauregard can write the same number of problems in 30 hours, and Clyde can write the number of problems in 40 hours. Working together, at what time will the three of them finish
44. math

Ben can complete 3 math problems in 21 minutes. If he continues working at the same rate, how long will it take Ben to complete 16 math problems? thanks .
45. math

Ben can complete 3 math problems in 20 minutes. If he continues working at the same rate, how long will it take Ben to complete 15 math problems?
46. math

Ben can complete 4 math problems in 20 minutes. If he continues working at the same rate, how long will it take Ben to complete 17 math problems?
47. Math Surveying

Hey, Need some help working these 3 problems. I have the answers but I'm having problems working them. Thank you in advance. The slope measurement between two points is 25.333 m and the slope angle is 1°50. Compute the horizontal distance. A distance of
48. algebra

how do I help my son answer this question/ cary spent 1/3 of his class working on fraction problems and 3/6 of his class working on algebra problems. He spent the last 10 minutes of his class reading a chapter in his textbook. How many minutes long was the
49. English

I need help with this homework: Present Perfect vs Present Perfect Progressive: Choose the best answer. (In some sentences, both answers are acceptable.) 1. I’ve never (been making – made ) more than \$500 a week. 2. He’s always (wanted - been
50. HELP MATH

Thank you for taking the time to respond. I am in the 5th grade. However word problems are a problem. On my homework sheet it says, Strategies Used.... Visual Thinking... My soloution First I... Then I... Next I... After that I... Finally I... My answer
51. science

WHat branches of science fall under the environmental science umbrella? Go to Wikepedia...very good article on environmental science...they list sub-categories. Depending upon what is being investigated, there are many; such as chemistry, biology,
52. Statistics

I'm looking for some help with my statistics homework...I'm good with the basics, but I really bombed on my last class anyone??? To help you, we need to know specifically what problems you have. Please repost with specific problems. I hope this helps a
53. Algebra 1

Terry has completed 15 homework problems, and Susan has competed 9. Terry is completing 10 problems per hour and Susan is competing 12 problems per hour. After how many hours will terry and susan have completed the same number of problems ??
54. Micro- Econ

You have an hour between your economics and math classes. What is the opportunity cost of that time if you use it to complete your math homework instead of your economics homework? the economics homework you could have completed the math homework you chose
55. HELP!!!! (Math)

WORD PROBLEMS WITH EQUATIONS -Harry and Nicky share \$120 but Nicky takes \$58 more than Harry. How much does each person have? -When Katy was 12, her father was three times her age. Now he is twice her age. How old is Katy now? -a rectangle is 4cm longer
56. Math

I really need help with my homework. It's a long story. My great grandma wanted to walk alone with the dog but she almost got us stranded in Winco, blah blah blah blah blah, I have cheer pictures today, blah blah blah... basically I'm in my room crying
57. Math

The following are the last two problems on my test review. I am trying to study for a test. This is not my homework. I am not expecting anyone to do my homework for me. I just need to get the answers to be able to study and if you can help, I would really
58. math

My teacher never specifically told us how to do these type of problems and now i have 10 of the same type of questions for homework due when i come back to class 2 days. a^7b^6 ________ a^5b Im not asking for the answer but the steps to get to the answers
59. Math

help please anyone? i'm having a hard time solvig these problems LOGIC CONDITIONAL PROOF. HOMEWORK HELP PLEASE!? A. 1. A -> (B -> C) 2. (C ^ D) -> E 3. -F ->(D ^ -E) / :. A -> (B -> F) B. 1. (A v B) -> -(C ^ D) 2. (-C v -D) -> (E
60. Math

Macy spent 2hrs on homework she spent 1/4 of time working on math how much time did Macy spend on math homework
61. Math conversion factors

1. Fruit smoothies sold in the month of march at the rate of 136 a day. 2. Fast food meals eaten is a month at a rate of 72 meals in a year. 3. Homework problems solved in 2 hours 30 minutes at a rate of 26 problems an hour.
62. Math

thanks for the answers, but I need to know how to solve the problems, so I can finish the remainder of my homework. Use a power of ten to change each to a decimal. 2 1/2 4 1/25 I need to learn how to solve these types of problems. I was out of the room
63. Math

My grandson just gives up in working his division problems. He is in the 4 grade and I just cannot find a way to get him interested enough to apply and understand. Can you help me.
64. math

my daughter is working on 5n + 2n - (3-10N) can someone walk me through how to solve problems like this I have not been in school in over 20yrs. I think you have to work () first? but really do not know HELP please thank you
65. Math 222

Please help me solve these two problems. My addition sign is not working on my keyboard. a^4b plus a^2b^3 18z plus 45plus z^2
66. Math 222

Please help me solve these two problems. My addition sign is not working on my keyboard. a^4b plus a^2b^3 18z plus 45plus z^2
67. sat essay

Is it necessary for us to find new solutions to problems? Many people may argue that we don¡¯t need to since we are already able to solve the problems. As far as I am concerned, we should always try to find new solutions to problems. New solutions enable
68. math

Will you help me with my math homework? what level of math? Please repost with the specific problems, so we can help. Thanks for asking.
69. Chemistry honors

20 grams magnesium metal react with excess oxygen and 28 grams of magnesium oxide are produced in lab what is percent yield? If 99.8 g of aluminum nitrate are reacted with excess sulfuric acid what would be the theoretical yield in grams of aluminum
70. math

Give two equivalent fractions for the smallest amount of problems you need to complete correctly on a homework assignment to get 85%
71. accounting

Can someone give me the site where I can do practice problems for Managerial Accounting. My instructor bases his exam on the CPA, the homework is easy. He said that he wants us to think outside the box. I need practice. All were word problems.

In 5 min, Peter completed 2 math problems. Yvonne says he did 3/5 of a problem each minute. Is she correct? Explain. Sorry I really didn't get my math homework.
73. Math

Jance spend from 7pm to 9pm doing her homework. She spend 3 times as mach time on her english project as she did on math. the science homework took twice as long as her math homework. How meny minutes did she spend on her science homework?
74. Math (What Do I Do)

Choose the best graph for the given situation. Copy the graph and label the axes with the variables give in parenthesis (the first variable goes on the y axis and the second variable on the x axis). 1.Karina walked from home to the library, did some
75. Math

A souvenir shop sells about 200 coffee mugs each month for 6\$ each. The shop owner estimates that for each \$0.50 increase in the price, he will sell about 10 fewer coffee mugs per month. a. How much should the owner charge for each mug in order to maximize
76. Math

A survey carried out on 40 students about when they did their homework over the weekend F=(homework done on friday) S=(homework done on saturday/Sunday ) n(f)=20,n(s)=29 How many did both days ?
77. math

lila did 2 and 3/4 hours of homework on saturday and 3/4 of homework os sunday.what is the time she spent on homework over the weeekend
78. English

1. I do math, science, and English homework every day. 2. I do much / a lot of homework every day. 3. I do much homework every day such as math homework, science homework, English homework, Chinese characters homework, etc. (Are they all grammatical?)
79. Math

I have 4 math problems that need to be solved by using factoring. I am unable to figure the following out. I have used the FOIL method but it seems not to be working out. I appreciate any help I can get. Thanks ^ exponet 3x^3-7x^2+2x x^2-2x+5
80. Math Challenge check

I can appreciate your honesty. However, I thought this was a blog to help people not to insult them. What may seem obvious to one person may not be to the next. Especially so for young students who come here for help with homework problems.
81. algebra

Abby spent 5 1/2 minutes solving 5 math problems on her homework. How much time did she spend on each problem, on average? show your work.
82. algebra

I have a few math questions I made them just like my actual problems so that I can go through the steps you have went through to answer my own problems...Again THESE ARE NOT THE REAL PROBLEMS JUST EXAMPLES LIKE MINE WITH DIFFERENT NUMBERS. I don't know how
83. algebra

I am working on homework with properties of triangles and i am lost can you help
84. College Algebra

x/(2x-4)-7=1/(x-2).. How I clear this denominator if I must clear it at all.. Im not sure how to approach these problems.I have several others similar to this 1/2y+ 4= 1/7y I changed the denominators to 14y, then got 7/14y+ 4= 2/7y but my online homework
85. Homework (in general)--help!

I was an A/B student a few years ago, and now there's a problem. I'm a 6th grader whose "homework forgetting level" is increasing. For some reason, I often leave some of my homework home. Can you help me so I will then rarely forget my homework?
86. psychology

I need help bascially i didn't have time to jot down the homework so i'm not sure what the homework is about so...the only solution to this is to email my teacher but i don't know how to say it to her? Shall i say to her hello, I'm not sure what to do for
87. To Desire

Your posts have been removed, mainly because you have given absolutely no thought to how you'll solve those problems in your assignment. In the future, please remember these things: 1. This is a homework help website; please put your subject (math,
88. Math

On Tuesday, Leslie spent 47 minutes on math homework, 39 minutes on science homework, 52 minutes on English homework, and 44 minutes on history homework. How much time did Leslie spend doing her homework on Tuesday?
89. Math

You have 34 math and science problems for homework. You have 10 more math problems then science, how many of each do you have?
90. Algebra 2

Before I go on and give you the problenms let me explain. i am not some lazy kid trin to get people to do my homework over the internet. I am freshman that just recently skippeda garde in math and I need some help. The problems below are from my pop quiz
91. Algebra 2

Before I go on and give you the problenms let me explain. i am not some lazy kid trin to get people to do my homework over the internet. I am freshman that just recently skippeda garde in math and I need some help. The problems below are from my pop quiz
92. Math

Could someone please help me with these problems? I've been working on them for a long time, but I'm not sure if I'm right 1. 12 x (-4) x (-5) Is the answer -32? 2. -18 divided by (-2) is the answer -9?
93. algebra

A student missed 11 problems on a Chemistry test and received a grade of 65%. If all the problems were of equal value, how many problems were on the test? Round off your answer to the nearest integer. X= # of problems 11= 3 of missed problems 65% of
94. math

kenneth has 22 math problems to do for homeworks he has 12 problems done. How many more problems does he have left? If he completes 1 problem every minute, how many more minutes does he have to work?
95. Math

How would you solve for A 5 x 3^(x+2)= A x 3^(x) Please help me, I have loads of problems like this on my homework assignment and I just can't seem to figure it out Well, we could divide both sides by 3^x couldn't we? We know it's never 0, so there's no
96. Math

An average song is 5,000 bytes (5B). ow many songs can an 4 gigabyte mp3 player store? I'm not looking for an answer, but please explain how to solve this problem? I'm confused. There are many other problems like this on my homework and I don't know what
97. math

Julian spent 45 minutes doing his math homework. He spent 35 minutes doing his science homework. Afterward, he did his reading homework. He ended up studying for 2 hours and 15 minutes altogether. How long did it take him to do his reading homework?
98. Math problem

having problems working this problem out please solve 49 5/2
99. High School Algebra II

Hey friends, I have a big assignment I've been given that I really, really could use an 100% on. I've been working on it for hours and have a decent amount done, have had teacher help, and have had friends work with me on it, but I still need help. If
100. Math - Arithmetic question

I have a question about the limits to Arithmetic problems, on my homework I've noticed that so far all of the arithmetic sequences limits are infinite (-infinity or +infinity, I was just wondering if all the limits to Arithmetic problems are to an infinity