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February 28, 2015

Homework Help: 3rd Grade

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Math
I am doing Partial Quocients Division for homework. And I need help.But, my mom didn`t learn this method.And my dad`s gone on buisness, my brother doesn`t know how to do it, my other brother is doing his homework and my sister is only in the 3rd gade. What should I do? Post a ...
Wednesday, January 24, 2007 at 7:19pm

Biochemistry
True or False Cofactors and coenzymes are usually larger than enzymes and participate in catalysis . http://en.wikipedia.org/wiki/Coenzyme Notice the 3rd word under the definition when at the above site.
Wednesday, January 24, 2007 at 5:30pm

trig
if 10 students enter projects in the art show, how many different ways can they come in 1st, 2nd, and 3rd place? would you go 10^3 OR 10TIMES 3? This is not a trig question. Neither of those answers is correct. After making one of ten possible choices for first place, there ...
Thursday, January 18, 2007 at 9:28pm

math,correction
can someone correct this for me please. Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last test to get a C ...
Tuesday, January 9, 2007 at 7:38pm

math correction
can someone correct this for me.or teach me if i'm wrong Statistics. Sam must have an average of 70 or more in his summer course to obtain a grade of C. His first three test grades were 75,63, and 68. Write an inequality representing the score that Sam must get on the last...
Monday, January 8, 2007 at 1:45pm

french
how do i do subjontive? how do i know that i am doing it right? the endingings : e,es,e,ions,iez,ent - do i use those for every verb i use? for -ir verbs, do i also add -iss, or is that onlyfor imparitive? merci! Thank you for using the Jiskha Homework Help Forum. It would ...
Wednesday, December 20, 2006 at 9:39pm

Pre-Cal
Recursive Sequences: find a formula for: 1,1,2,3,5,8,13,21 It looks like the Fibonacci sequence. Take the first two numbers and add them to get the 3rd. take the 2nd and third to get the fourth...etc. yeah, but how would i write that into a formula?
Wednesday, December 6, 2006 at 6:45pm

3rd grade social studies
where can i find some good information on christopher columbus for a good report. http://en.wikipedia.org/wiki/Christopher​_Columbus and http://www.columbusnavigation.com/ and http://www.ibiblio.org/expo/1492.exhibit​/c-Columbus/columbus.html =) thanks thanks
Tuesday, December 5, 2006 at 8:40pm

Music
I have a couple of questions... 1. I have to transpose a musical piece that is in B flat. I need to move it up a major 3rd from that. What key would that be in? 2. I have questions about diminishing intervals as well. Please help.
Wednesday, November 29, 2006 at 12:59pm

liturature
What does the term 'craft technique' mean? Example:"What is one author's craft technique found in this text that makes the writing lively?' See my answer to your question below. =) What is a story with one or more level of meanings? i need help on learning...
Wednesday, November 8, 2006 at 7:58pm

Algebra1234567890!
(-mn8)3 would it be: -m^3n^3164 (-mn8)3 = -24mn Without carrots I have no idea where your exponents are. how?I don't get this one? Is this Sandro from Mrs.Pfeiffer's class?What grade are you in? Leo is saying you need to use carets to show an exponent. As you have ...
Wednesday, November 8, 2006 at 5:44pm

spelling
I am a step mom to 3rd grade twins. One of them is failing her spelling tests repeatedly. I have very limited time with them and don't talk to them very often, nor am I allowed to speak to the teachers. I have looked at the LMC for books on spelling but don't really ...
Wednesday, November 1, 2006 at 4:47pm

Geography
what do blue lines mean on a map? http://www.leisurelybackpacker.com/a_com​pass.shtml 3rd paragraph down
Monday, October 23, 2006 at 10:03pm

Evaluation-repost
Reposting because it has gone down to the second page! Evaluate 1. sin(tan inverse sqrt(x^2-2x)) 2. tan (sec inverse 3y) For 1. draw a right triangle and label the opposite leg sqrt(x^2-2x), the adjacent side 1 and the hypotenuse x-1. Do the calculations to see why this is so...
Monday, October 23, 2006 at 8:17am

a.p. calculus help please!
My a.p. calculus teacher doesn't know how to do this problem (like many others) so he's giving us 5 points extra credit on our test if we can figure it out, but I don't know how to do it: It's as the lim-->infinity (x+sinx)/(x+cosx) We know the answer is 1 ...
Sunday, October 22, 2006 at 8:46pm

physics
I'm supposed to design a device that will protect a raw egg, GRADE A, (not that its really important to know what kind of egg it is... LOL) But, it will drop from a 12 FOOT height to a concrete floor. The only materials that I'm allowed is about 9 sheets of "8.5 X...
Friday, October 13, 2006 at 11:20am

Economics
Demand is given by Q=9-P. If price is $4, what is the consumer surplus from the third unit of the good? Consumer surplus is the amount a person would pay less the amount he/she actually pays. So, using algebra, rewrite the demand equation as P=9-Q. The person buying the 3rd ...
Sunday, October 8, 2006 at 5:29pm

math
the bus route also passes through balmorhea which is 1 3rd of the way from el paso to san antoio. about how long does it take the bus to get to balmorhea You told us the distance from El Paso to San Anotonio is 560mi, so the distance to Balmorhea = 560/3. Using distance = rate...
Monday, October 2, 2006 at 9:30pm

Math
I can not find the solutions to the following problems using 2 methods: algebraically and geometrically. 1. X with the square root of 2 =9 2. X with the square root of 3 =27 3. X with the square root of 4 =27 --Note: Fourth root I'm not sure what you mean by "1. X ...
Thursday, September 28, 2006 at 1:05pm

Language Arts
I left my McMillian text book for language arts in school today and I have homework on page 2 and 3. I'm in the 6th grade does anyone have that book. I really really need those questions. I don't know if this gives page numbers that correspond with your text or even if...
Monday, September 11, 2006 at 5:04pm

math
what do we call the numbers that cannot be arranged into 2-row arrays? I think this is the 3rd time I've seen this question posed. I'm not aware of any special name for arrays with two rows, so I'd sure be interested to see what the quesioner has in mind here. As ...
Wednesday, August 30, 2006 at 5:42pm

math
My 3rd grader brought home a math worksheet and I'm not sure about the answers, so I wanted another opinion. Estimate each sun or difference by rounding. 23 + 71 so, do you answer the prblem and then write the rounded numbers to the right or do you just round the answer? I...
Tuesday, August 29, 2006 at 5:31pm

math question
hi, i have a math question that i need help with: when data are non-numerical but can be ordered, such as letter grades, the mean cannot be calculated directly; but both the median and mode can be found. Last year in Ms. Flag's history course, the final grades were 8A'...
Tuesday, August 29, 2006 at 3:17pm

math
how would you solve for y in this problem: x=(y^2+3y)^(1/3) I got: y= x^3/y - 3 ? and for this problem: x= 1/[(y^2+3y-5)^3] I got: y = y/x + 5/y - 3? However, I do not know how to solve for y explicitly. I don't think quadratic formula would work in these problems. Please ...
Thursday, July 20, 2006 at 1:27pm

Statistics
1200 high school freshman were randomly selected for a national survey. Among survey participants, the mean grade-point average was 2.8, and standard deviation was 0.6. What is the margin of error, assuming a 95% confidence level?
Friday, February 27, 2015 at 1:18pm

6th grade geometry
If the area of a triangle is64 is the base 16 and the height 32?
Wednesday, February 25, 2015 at 11:18pm

My Grades
My math grade is an B+ should I do a retake for extra credit? This will consist of extra credit opportunity's in portfolios and test. Thank you very much! -Emolga
Wednesday, February 25, 2015 at 10:36am

5th grade math
Marcus is building a rectangular box for his kitten to sleep in. He wants the area of the bottom of the box to be 360 square inches and the length of one side to be 1 3/5 the length of the other side. What should the dimensions of the bottom of the bed be?
Monday, February 23, 2015 at 9:49pm

STAT
A student takes a ten-question true-false quiz, but did not study and randomly guesses each answer. Find the probability that the student passes the quiz with a grade of at least 70% of the questions correct
Friday, February 20, 2015 at 11:48pm

life orientation(grade 12)
hey um given the same assignment can some one answer me for nunber 1.7plz
Thursday, February 19, 2015 at 11:03am

Math
Given the following information about a sample, calculate a z score for a test grade of 91. = 87, s = 4.01
Thursday, February 19, 2015 at 9:25am

algebra
how many tiles 10cm by 25cm on each side is needed for a bathroom 8m by 10m? I need help on how to solve it... I learned how to do this in 8th grade but I'm now in 10th and I forgot how to do it. I'm preparing for the highschool exit exam and I need to do this problem ...
Monday, February 16, 2015 at 7:17pm

math
I'm just having trouble trying to see the independent and dependant variables. I have to determine whether the following are functions: The relation between distance and time if someone walks 5km/h. I think distance would be the independent variable because you can go ...
Monday, February 16, 2015 at 4:53pm

Anthropology
What age grade (age set) do you find in the United States? Are there more than one?
Thursday, February 12, 2015 at 9:27pm

Physics
During a rElay race along a straight ROAD the 1st runner on a three person team runs D1 with a constant velocity v1. The runner then hands off the baton to the sEcond runner who runs d2 with a constant vElocity v2. The batton is then passed to the 3rd runner who completes the ...
Wednesday, February 11, 2015 at 11:36pm

6th grade math
When solving an inequality, why is it necessary to perform the same operation on each side of the inequality sign?
Wednesday, February 11, 2015 at 5:49pm

math(5th grade)
sally singleton's batting average is 0.375 and she has been at bat 120 times. How many times has sally hit the ball? pls help
Wednesday, February 11, 2015 at 1:45am

math
I'm in grade 5 and I need help on an area and perimeter question. The area of a rectangle is 300mm and the length of it is 15 mm. I need to find out the width of this rectangle.
Tuesday, February 10, 2015 at 7:19pm

math
I'm in grade 5 and I have a area and perimeter question. The area is 300mm2 and the width is 15mm, I need to know what the length is. Thanks for your time.:-)
Tuesday, February 10, 2015 at 7:05pm

math
the grade of 8 students on a 10-point test were 1,3,5,5,7,8,9,10 comute the mean of these scores
Monday, February 9, 2015 at 9:32pm

Grade 9 French
I need help I'm trying to find a rap to help me with the present and irregular verbs
Monday, February 9, 2015 at 8:56pm

3 rd grade Math
how are perimeter and area? When building your club house did you have a more difficult time finding the perimeter or area? why?
Monday, February 9, 2015 at 3:37pm

6th grade math
To qualify for a store discount, Clay's soccer team must spend at least $560 for new jerseys. The team needs 20 jerseys. Write and solve an inequality to represent how much the team should spend on each jersey to qualify for the discount.
Sunday, February 8, 2015 at 2:32pm

4th grade math fraction
How do I show the work to find the fraction with the greatest value? 7/10, 1/5, 9/10 5/6, 7/12, 7/10
Sunday, February 8, 2015 at 1:59pm

9th Grade Algebra
If a is not equal to 0, and a =2b=3c, what is the value of a+b in terms of c? Would I make up numbers for the variables?
Saturday, February 7, 2015 at 6:40pm

math
A student’s final grade in chemistry is determined by the following weights: Quizzes 5% Exam 1 20% Exam 2 20% Lab Reports 15% Research Paper 15% Final Exam 25% The student received the following grades: Lab reports: 75 80 70 75 85 69 90 75 Quizzes: 85 60 70 0 75 80 80 80 ...
Friday, February 6, 2015 at 4:09pm

Grade 8
The numbers 1 through 9 are put into a hat. What is the probability that all odd numbers will be chosen first if one number at a time is drawn from the hat and not replaced?
Friday, February 6, 2015 at 9:45am

6TH GRADE MATH
No more than 7 copies of a newspaper are left in the newspaper rack. Which inequality represents this situation? A. N<7 B. N>7 My answer is N<7. Do I have answer correct?
Thursday, February 5, 2015 at 11:27pm

math 4th grade
Lance wants to find the total length of 3 boards. He uses the expression 3 1/2 + (2+ 4 1/2). How can Lance rewrite the expression using both the Associative and Commutative Properties of Addition?
Wednesday, February 4, 2015 at 8:57pm

7th grade math
The sum of an integer and the next greater integer is at the most 13. Write an inequality to find the lesser integer and solve for the lesser integer. My answer n+n+1 <_ 13 n<_6
Wednesday, February 4, 2015 at 7:39pm

english
This is Engish 8th grade: So in my book titled "The Raven" by Edgar Allen Poe, the bird sits on the bust of Athena the goddess but my homework is asking my why Poe choose Athena and not another god or goddess and how does she go with the story... Please help thank you!
Tuesday, February 3, 2015 at 9:59pm

4th grade math
There are 12 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty?
Monday, February 2, 2015 at 9:13pm

4th grade math
Ursula bought 9 dozen gauze pads for the health office. The gauze pads were divided equally into 4 boxes. How many gauze pads are in each box?
Monday, February 2, 2015 at 8:53pm

4th grade math fraction
Ashley bought 4 packages of juice boxes. There are 6 juice boxes in each package. She gave 2 juice boxes to each of 3 friends. How many juice boxes does Ashley have left?
Monday, February 2, 2015 at 7:53pm

5th grade math
solve 1. 8/11 divided by 4 2. 3/8 divided by 3/10 3. 6 divided by 3/4 4. 1/6 divided by 5/6 5. 2 3/4 divided by 11 6. 3 1/2 divivded by 7/8 7. 1 7/8 divided by 1 1/2 8. 5 divided by 4 1/3
Monday, February 2, 2015 at 7:44pm

4th grade math fraction
Jasmine has 8 seashells. Three-quarters are clamshells. How many shells are clamshells?
Monday, February 2, 2015 at 7:36pm

Math 5. Grade
Trying to figure out how to find the answer. A rectangular has a perimeter of 3600m. What is the width if the length is five times the width? How do I do this.
Monday, February 2, 2015 at 7:10pm

4th grade math
A park guide plans the swan boat rides for 40 people. Each boat can carry 6 people at a time. What is the best way to interpret the remainder of 40/6 in this situation so that everyone gets a ride? How do I show the work?
Sunday, February 1, 2015 at 9:40pm

4th grade math
There are 112 seats in the school auditorium. There are 7 seats in each row. There are 70 people seated, filling up full rows of seats. How many rows are empty? We added and got 189 then divided by 3. But it doesn't look correct. How do we show the work?
Sunday, February 1, 2015 at 9:24pm

4th grade math
Jake wants to distribute 543 marbles equally among 7 of his friends. In what place is the first digit of the quotient?
Sunday, February 1, 2015 at 9:17pm

4th grade math
The school choir has 48 singers with high voices, 53 singers with middle voices, and 39 singers with low voices. the singers stand in 4 equal rows at concerts. How many singers are in each row? How do I show my work for this?
Sunday, February 1, 2015 at 8:07pm

4th grade math
Amanda and her four sisters divided 1,021 stickers equally. About how many stickers would each girl receive? How do I show my work?
Sunday, February 1, 2015 at 8:02pm

8th grade Science please help
Why is soda in an unopened bottle a homogenous mixture?
Sunday, February 1, 2015 at 1:20pm

math
in an arithmetic sequence the common difference is equal to 2.the first term is also the first term of a geometric sequence. the sum of the first 3 terms of an arithmetic sequence and the sum of the first 9 terms of an arithmetic sequence form the 2nd and 3rd terms of a ...
Friday, January 30, 2015 at 12:13pm

7th grade math
i am having a hard time understanding the venn diagram can someone explain it to me
Friday, January 30, 2015 at 11:34am

2nd grade math
Can all 4 sided figures be made from triangle? why?
Thursday, January 29, 2015 at 6:31pm

2nd grade math
take a shape with 4 sides. draw a line between two vertices that do not share a side. how many shapes does that make? how many sides do they have
Thursday, January 29, 2015 at 6:05pm

Math 6 grade
If you need to find the percent of a number, explain how you can predict whether the part will be less than, greater than, or equal to the number. HELP PLEASE
Wednesday, January 28, 2015 at 7:06am

math 4th grade
llene is making smoothies. The recipe calls for1 1/4 cups of strawberries. How many cups of strawberries, written as a fraction greater than one, are used in the recipe?
Tuesday, January 27, 2015 at 9:23pm

Algebra (6th grade)
I need help on the algebra with pizzazz worksheet page 8 Objective 1-h. Need the answers to letters O-R or just the puns answer straight out please! ^_^
Tuesday, January 27, 2015 at 4:24pm

4th grade math
A frog made 3 jumps. The first was 12 5/6 inches. The second jump was 8 3/6 inches. The third jump was 15 1/6 inches. What was the total distance the frog jumped?
Sunday, January 25, 2015 at 11:02pm

math 2nd grade
Write a sentence using words that compares the crayons in the two boxes
Sunday, January 25, 2015 at 9:33pm

math
my sun in thea 1st grade me no understand to much english i need very much help what is 9+10=??? me having very hard time help asap
Saturday, January 24, 2015 at 2:39pm

6th grade math
how can i put fractions and decimals in greatest to least or least to greatest?
Friday, January 23, 2015 at 1:22am

math
how is GCF and LCM different? im in 4th grade and i tried to understand but my mum said shes not sure so please i need help
Thursday, January 22, 2015 at 5:54pm

. 8th grade math
. Mkay ! So, one molecule of nitrogen reacting w/3 molecules of hydrogen makes 2 of ammonia. How many molecules of nitrogen must react w/42 molecules of hydrogen to make 28,of ammonia?
Wednesday, January 21, 2015 at 10:54pm

maths lit, history, geography, life sciences and L
Am in grade 10 and those are the subjects i want to choose so can i become a psychologist with those subjects in the future??
Wednesday, January 21, 2015 at 9:05am

Analytic chemistry
A solution of HClO4 was standardized by dissolving 0.3745 g of primary standard grade HgO in a solution of KBr. The liberated OH- required 37.99 mL of the acid to be neutralized. Find the molarity(M) of HClO4. The given balanced chemical equation is: HgO + 4Br- + H20 ===> ...
Wednesday, January 21, 2015 at 8:17am

Science- urgent-review
what type of galaxy do astronomers consider to be the oldest? It's urgent because I am studying for a grade 9 exam but I dont know what this is.. please help.
Tuesday, January 20, 2015 at 6:47pm

math
James needs to bring his grade up to a B (80) in reading. What does he need to get on his next quiz? Quiz 1:77 Quiz 2:81 Quiz 3:74 Quiz 4:?
Monday, January 19, 2015 at 9:50pm

grade 7 math
Uniform Motion Related Problem Jessie has a 15 km head start on Melvin. How long will it take Melvin to catch Jessie if the latter travels at 70 kph and the former at 100 kph?
Monday, January 19, 2015 at 11:57am

grade 7 math
Uniform Motion Related Problem Two planes leave an airport at 2 p.m., one flying south at 450 kph, the other flying north at 675 kph. At what time will they be 3 600 apart?
Monday, January 19, 2015 at 11:54am

grade 7 math
Uniform Motion Related Problem Two cars starting from the same point travel in opposite directions. Car A travels at 80 kph and car B at 110 kph. After how many hours will the cars be 760 km apart?
Monday, January 19, 2015 at 11:51am

grade 7 math
Uniform Motion Related Problem Two cars, 210 km apart, met each other in 2 hours. If one car travelled at 60 kph, at what rate did the second car travel?
Monday, January 19, 2015 at 11:48am

grade 7 math
Uniform Motion Related Problem Chester drove his car at 8:00 a.m. at speed of 45 km/hr. At 9:15a.m. Michael followed with his car. What should be Michael's speed so as to be able to overtake Chester at 1:00 p.m.? How far has Chester travelled when Michael overtook him?
Monday, January 19, 2015 at 11:46am

grade 7 math
Uniform motion Related Problem Five boy scouts biked to Caliraya lake at 5 km/h. their scout master gave them a ride back home in his pickup car, at 20 kph. Find the hiking time if it 6 hors longer than their riding time.
Monday, January 19, 2015 at 11:38am

7th grade math
-2(3r+4)= -5r-8-r Answer I got r=r Question 2 14+8w=4(8+2w) I have 14=48. No solution
Monday, January 19, 2015 at 10:30am

chemistry grade 11
which of the following has lowest vapour pressure ? 1 water 2 bromine 3 ethyl alcohol 4 ether
Monday, January 19, 2015 at 7:15am

Maths lit Business studies Economics History
im in grade 10 and i want to know what jobs can i do with these subjects
Sunday, January 18, 2015 at 9:57am

7th grade math
Can you check the following? 10. A store pays $10 for a bracelet, and the markup is 115%. A customer will also pay 5 1/2% sales tax. What will be the total cost of the bracelet to nearest cent? t = 1.15 x 10 t = $11.5 (markup price) t = $10 + 11.5 t = $21.50 (cost of bracelet ...
Friday, January 16, 2015 at 11:10pm

math(5th grade)
sixteen teams compete in a single elimination basketball tournament (one loss and you're out). How many games must be played to determine a champion?
Friday, January 16, 2015 at 12:56am

5th grade science
How might the history of the United states be different if the first European settlements had occurred on the west coast instead of the east coast
Thursday, January 15, 2015 at 9:19pm

6TH GRADE MATH
Write an equation you can use to find the length of the rectangle. area=72 m^2. 8m=length xm=width My equation is 8x=72 Am I correct?
Thursday, January 15, 2015 at 9:10pm

math(5th grade)
Garrett reads 2.8 pages in 3.5 minutes how much does Garrett read in 31.5 minutes
Thursday, January 15, 2015 at 12:49am

Math 7th grade
1/15 =3/5m For my answer, I put m= 1/5 Is that correct?
Wednesday, January 14, 2015 at 5:17pm

5th grade math
Julian wants to put a border around two sides of his rectangular shaped garden. he has a 12 foot piece of lumber that will be cut into 1/3 foot pieces. how many 1/3 foot pieces can Julian cut from the lumber? 12 divided by 1/3
Tuesday, January 13, 2015 at 8:02pm

7th grade math honors
The total cost for renting a kayak is represented as 25+5.50m. What is the constant in the expression 25+5.50m? Show work.
Monday, January 12, 2015 at 5:47pm

8th Grade Geometry
given that triangle ABC~ triangle XYZ, angle a=50, angle x=(2x+5y), angle z= (5x+y), and that angle b =(102-x), find angle z.
Sunday, January 11, 2015 at 1:33pm

Chemistry grade 11
An organic compound is composed of C, H and O. A 0.1005 g sample of this is combusted, producing 0.2829 g CO2 and 0.1159 g of H2O. What is the empirical formula of this compound? If the compound has a molar mass of 14 g/mol. What is the molecular formula?
Saturday, January 10, 2015 at 6:58pm

math(5th grade)
if an elephant's heart beats 25 time a minute, how many days does it take to beat a million times?
Friday, January 9, 2015 at 12:38am

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