April 20, 2014

Homework Help: 10th Grade

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10th grade Academic Math
hi can you help me with this problem please, thank you.----------------- If the speed of an experimental car is decreased by 8km/h it completes a 140 km trip in 2 hours more than had it been traveling at its usual speed. Determine its usual speed.
Monday, June 7, 2010 at 6:41pm

Math need help asap
In 1995 the life expectancy of a male in a certain country was 70.98 years. In 2002 it was 73.4 years. Let E repersent the life expectancy in year t and let t repersent the number of years since 1995. The liner function R(t) that fits the data E(t)= _t+_ round to the nearet ...
Sunday, June 6, 2010 at 10:52pm

math 116
In 1995 the life expectancy of a male in a certain country was 70.98 years. In 2002 it was 73.4 years. Let E repersent the life expectancy in year t and let t repersent the number of years since 1995. The liner function R(t) that fits the data E(t)= _t+_ round to the nearet ...
Sunday, June 6, 2010 at 8:09pm

10th grade Biology
In a multicellular organism all the cells of the body are not in the direct contact with they environment so it would take long time for oxygen to reach our whole body.hence diffusion insufficient to meet the oxygen requirement of multicellulars
Tuesday, May 25, 2010 at 9:12am

10th grade living enviorment
what happens when a population or group of living things is divided into two separate groups in two separate environments ?
Thursday, May 6, 2010 at 7:00pm

I have a project due this week and I have to make a board game, so I need 15 questions about right triangles. I already have about 7, so is there a website with some examples? This is 10th grade geometry.
Monday, April 5, 2010 at 6:42pm

10th grade
The slope intercept is 1/3 and the y intercept is 4xsquaredk. What is the slope intercept form.
Tuesday, March 30, 2010 at 10:46pm

10th grade
which of the following belong in which tropic level; catfish, algae, small aquatic plants, phytoplankton, dandelions, walleye, snails, zebra musse, moose, zooplankton, grasshopper, squirrels, loon, cryfish, goby (fish), ducks, wolf, herring, field mouse, tuna, snake, cougar, ...
Monday, March 29, 2010 at 10:03pm

10th grade, spanish three
deopends me habla un amigo(guy friend) me habla una amiga(female friend) me habla mi mama(mother) me habla mi papa(father) depends
Friday, March 26, 2010 at 5:47pm

10th grade
The ultimate task of all the explorations launched by the Europeans from the fourteenth century onward was? A. finding a sea link between Europe and the wealthy civilizations of Asia. B. establishing European political dominion over all of Asia. C. perfecting European ...
Tuesday, March 23, 2010 at 4:36pm

10th grade
A tree casts a 25 foot shadow. At the same time of day, a 6 foot man standing near the tree casts a 9 foot shadow. What is the approximate height of the tree to the nearest foot?
Thursday, March 18, 2010 at 8:41am

Math 10th grade
five marbles in a jar are green. the odds against choosing a green marble are "4:1" how many marbles are in the jar
Thursday, March 11, 2010 at 10:48pm

10th grade Literature
2. "THEY" are the humans of Earth. The implication is that astronomers on Mars noticed the nuclear destruction of planet earth. This poem was likely written before we knew that there was no intelligent life on mars. It's meant to convey a sense of irony that ...
Wednesday, March 3, 2010 at 1:54pm

10th grade
I have to right an iambic pentameter poem on a pilgrim such as a plumber or a goat farmer. I've been working on it for days but just came to the assumption that I CAN'T RIGHT POEMS. I've tried using quotes from Dantes inferno and rewording them but it didn't ...
Tuesday, February 2, 2010 at 10:04am

10th grade
Do you use hand soap or hand sanitizer several times a day? You should. Why should all of us use these products frequently?
Wednesday, January 27, 2010 at 8:10pm

10th grade english
Stories can mean different things to different readers. State a meaning you find in “The Pedestrian,” and then discuss how the story’s setting is relevant to that meaning. This is my question, I am confused as to what they mean by meaning. Could someone explain?
Saturday, January 23, 2010 at 12:16am

10th grade Spanish
Put subject in "School Subject" area, so tutors who are experts in the area will respond. Erica was close. It is the formal version of "What are you doing there?" The familiar would be "¿Qué hacéis allí?" In this case, ...
Friday, January 22, 2010 at 9:36am

10th grade
I am writing an essay on things from the natural world and I need to think of categories for the things in order to write paragraphs. The sun, moon, sea, and sea shore are all things from the natural world. What one smaller category do they fit in?
Sunday, January 3, 2010 at 12:12am

10th grade english
Write an essay comparing Baldwin's account of the Titanic with Rosenthal's account of his visit to Auschwitz.In your paragraph, explain how the tone and purpose of each essay is different. Support your argument with at least one example from each essay.
Monday, December 21, 2009 at 11:35am

10th grade
what is the mathematical relationship between the total charge in the nuclei and the total charge of the nuclei in the products.
Wednesday, December 16, 2009 at 8:44pm

10th grade math
Translate the "math" into English ... first number: x second number: 12x - 3 third number: 7x + 4 finally: x + 12x-3 + 7x+4 = 301 solve for x, etc.
Friday, December 11, 2009 at 12:36pm

10th grade math
The sum of three numbers is 301. The second number is 3 less than twelve times the first number. The third number is 4 more than seven times the first number.
Friday, December 11, 2009 at 12:30pm

college writing
ok. thanks guys. research paper it is. i think in either 10th or 11th grade in history i had to write a paper on Prophet Mohammad and his teachings or something like that and I got a really good grade on it because it was a research paper and I had done my research well. I'...
Wednesday, November 25, 2009 at 1:39pm

10th grade English
I'm writing an essay for English class. I was just wondering if somebody could read over this sentence and tell me whether or not it sounds alright. Everybody wants to be happy, but we often forget how easy it can be to attain hold of that happiness due to tragedies in our...
Sunday, November 22, 2009 at 9:01pm

10th grade social studies
Thanks. I'm not sure what the context of this question is. Global trade and many choices of merchandise have helped all of us participate in the global community. Foods and music that at one time were only common to one ethnic group are now favorites of many diverse peoples.
Tuesday, November 17, 2009 at 10:35pm

10th grade algebra not ms.sue
68 = 110 ---- ---- 2 x This is how to set up the proportion that zorro was talking about, although he did it incorrectly. Cross multiply: 110 (2) = 220 68 (x) = 68x Therefore: 220 = 68x Solve for x by dividing by 68 on both sides.
Saturday, November 14, 2009 at 6:33pm

10th grade algebra
The cars are 500 miles apart. They are driving toward each other with the combined speed of 55+60 = 115 mph. distance = rate*time time = d/r = 500/115 = ??
Thursday, November 12, 2009 at 3:03pm

10th grade algebra
Natalie, It looks to me as if you have no idea what steps you need to use to do these kinds of problems...therefore, I think that you need to ask your teacher for after school help. That way you will learn what you need and feel much better about the process.
Thursday, November 12, 2009 at 2:38pm

10th grade algebra
two cars are driving toward each other from opposite directions if one is driving 55mph the other is driving 60 mph and the cars are 500miles apart how long before they pass each other? round to the nearest tenth of an hour.
Thursday, November 12, 2009 at 2:25pm

10th grade algebra not ms.sue
a 68 mile trip uses 2 gallons of gas. how many gallons would you use on a 110 mile trip? round to the nearest tenth of a gallon.
Thursday, November 12, 2009 at 1:50pm

10th grade algebra
two cars are driving toward each other from opposite directions if one is driving 55mph the other is driving 60mph and the cars are 500 miles apart how long will it be before they pass each other? round to the nearest tenth of an hour.
Thursday, November 12, 2009 at 1:23pm

10th grade algebra
well consider the original solution. IT has .3*8kg of salt in it, and .7*8kg water. Newsalt+oldsalt=.35(8kg +newsalt) .65Newsalt=.35*8 - .3*8=.4kg solve for Newsalt.
Thursday, November 12, 2009 at 12:43pm

10th grade
A parallelogram has sides 15cm and 18cm.The height corresponding to a 15cm base is 9cm.Find height corresponding to an 18cm base.
Monday, October 26, 2009 at 11:20pm

social studies
Read this site over, and then post what you think.​it-5-3-civil-liberties-2-10th-amendments​
Tuesday, October 20, 2009 at 12:14pm

10th grade English
These efforts IS linked? I verified the spelling of "focussed" and it is acceptable, but "ruff" no. However when done orally no one will really know how you spell it, unless you are also to turn the paper in. in "the" next centuries? flora, fauna...
Sunday, October 18, 2009 at 10:59am

10th grade Pre APworld history
I'm having a lot of trouble in this class, and tonight we have to record differences and similarities of the Ummayad and the Abbasid empires... i have read the chapter and still can not find any differences, and we have to write of them with 3 example of specific evidence ...
Monday, September 28, 2009 at 4:24pm

10th grade math
how do you work the following question out: if you have a rectangle, whos length is five cm longer than twice it width and has an area of 207com what are the values off the length and width any help of any kind would be welcome. thanks.
Friday, September 18, 2009 at 2:45am

3rd grade
grade 1 215 grade 2 186 grade 3 259 how many more were sold bt grade 3 than by grade 2? 73 answer why aren't any of the tens regrouped to subtract the ones?
Monday, September 14, 2009 at 4:11pm

10th grade History
What congressmen had sons who fought in the Vietnam War? What were the names of the Congressmen & sons? There were 28 total, 19 who saw combat. I found that info on one web site. I looked through many other sites, and can not find their names.
Thursday, September 10, 2009 at 11:28pm

10th grade
Where can I find a complete description about North American racial ideologies from 1500 to 1830 and their effects on Latin American Racial ideologies? Does this mean the transition from slavery to freedom?
Wednesday, September 2, 2009 at 10:20pm

10th grade
I assume your problem is: 5x + (6/10) = 4x - (8/10) = Or is it? (5x + 6)/10 = (4x - 8)/6
Tuesday, August 25, 2009 at 8:20pm

10th grade
1) correct 2) read​ and guess again 3) wrong. The color change is a clear indication of a chemical reaction.
Sunday, August 16, 2009 at 4:41pm

10th grade
Philippians 4:13 "I can do all things through Christ, who strengthens me." God is always on your side, you just have to allow Him in your heart. I will be praying that you get back on track. But please remember, if you have God in your heart you never have to do this...
Tuesday, August 11, 2009 at 9:12pm

10th grade english
Please help me. I just finished the Road by Cormac McCarthy and I really need help. I am so confised by this book, and I have to find the Plot, Setting and how it affects the story, Characters and how they differ, Literary devices used in this book, and quotes from the text to...
Tuesday, July 28, 2009 at 11:34pm

10th grade English
#5: involving in the population-based = being involved in... ¡®Given the rarity = get rid of strange marks may be offered = may be offered, onsidered¡ = ! get by involving in the study,= nvolving themselves... #6: Population based = Population-based Sra
Thursday, July 16, 2009 at 9:39am

10th grade biology
you find an unusual organism growing on the bark of a dying tree . Under a microscope , you observe the cells are eukaryotic , have cell walls , and do not contain chloroplasts . Into what kingdom . Would you place this organism ? Explain your decisions ?
Wednesday, June 3, 2009 at 12:13am

10th grade
Select one business within your industry that exports its product or service to other countries. Choose one of the countries that your business exports to, and write a one-page report about that country that includes the following topics:economy, politcal organization, ...
Sunday, May 31, 2009 at 12:09pm

10th grade
What are your educational and career goals? Your choice of classes should reflect these goals. In general, you should take the hardest classes you can.
Wednesday, May 27, 2009 at 9:32pm

10th grade
1.the flame of the candle or other burning matter always towards upward direction.why? 2.when the photos is taking by looking to the camera and later when the photo printed, why the photo always seems to look at the direction wherever we move around to it?
Friday, April 24, 2009 at 3:39am

10th grade Math B
much easier than you think. since you have 6 points equally spaced around the circle, joining every point to the centre will create 6 equal angles at the centre. so one rotation is 2pi radians, or 360 degrees, then one angle formed by two adjacent strings is 2pi/6 or pi/3 ...
Monday, April 20, 2009 at 9:30pm

10th grade Math B
Hi. This is my question: An art student wants to make a string collage by connecting six equally spaced points on the circumference of a circle to its center with string. What would be the radian measure of the angle between two adjacent pieces of string, in simplest form? ...
Monday, April 20, 2009 at 9:00pm

10th grade Living Environment
Vegetative propagation produces plants exactly like the parent. Seed propagation, because it contains genes of both parents, is not exactly like either parent. Check this site. (Broken Link Removed)
Wednesday, April 15, 2009 at 10:41pm

10th grade chemistry
write the balanced equation: 2Na+2HOH>>2NaOH + H2 which means find the moles of Na used (in 48.7g), divide those moles by two, and that is the moles of H2. For molecules, then multiply that by Alvarado's number
Monday, April 6, 2009 at 6:49pm

10th grade
Here is a good explantaion at tenth grade level):​se/nuclear/cardat.html
Wednesday, March 18, 2009 at 10:42pm

10th grade chemistry
We're doing a lab report on the hardness of water, and one of the calculations is "The EDTA reacts with the hard water ions in a 1:1 mole ratio. Calculate the molarity of the ions present in 20 mL of water tested." How would you do this?
Sunday, March 8, 2009 at 1:05pm

10th grade Geometry
Lorenzo's model train is 1/87 the size of the original train. He measures the engine of the model train and finds that it is 2.5 inches tall. What is the height of the real engine to the nearest foot?
Thursday, February 26, 2009 at 7:00pm

10th grade Geometry
As I view your figure at that site, it looks like ABC and ADE are NOT line segments. Points B and D are on the circle but not on a line. The two "angles" ADC and ABE do not look like angles in the figure
Tuesday, February 24, 2009 at 8:06am

10th grade Geometry
How do you do this proof? "In circle O, line segment ABC and line segment ADE are secants. Prove that angle ADC is congruent to angle ABE. This is the diagram:​m3.jpg
Monday, February 23, 2009 at 11:25pm

10th grade
Mixing the two is simply and acid base reaction. CH3COOH + NaHCO3 ---> CH3COONa + H2CO3 That last product is carbonic acid which quickly decomposes into carbon dioxide and water: H2CO3 ---> H2O + CO2 The CO2 is what you see foaming and bubbling in this reaction.
Tuesday, February 17, 2009 at 11:50pm

10th grade phisical science
The site I mentioned, also provides the direction.
Sunday, February 15, 2009 at 1:09pm

10th grade phisical science
I am not familiar with your abbreviations but will assume JHB is Johannesburg. The displacement you want is just the airline distance from JHB to Cape Town. That distance is 773 miles (1244 km) Try Googling "How far is it" for a helpful web site, which I used.
Sunday, February 15, 2009 at 1:06pm

10th grade
Do you have the seven rules? I will go over one .. H3PO4 Rule: H is +1 Rule: O is -2 except in peroxides. Rule: The sum of the oxidation numbers in a compound is zero. 3+ P -8=0 which makes P + 5 Try some yourself, memorize the rules. We will check your work.
Sunday, February 8, 2009 at 9:12pm

10th grade
I would use distance straight down to the water = 1/2(g)*t^2 which will allow you to determine how high Bob was when he fell out of the plane. Then distance = rate x time You know rate and you know time, calculate distance traveled horizontally. Check my thinking.
Wednesday, January 28, 2009 at 8:10pm

Literature 10th grade Look up these words -- colloquialism jargon dialect slang idioms Let us know what you decide.
Monday, January 12, 2009 at 4:57pm

Literature 10th grade
What is a Specialized form of informal english used by Traesmen among themselves? A boorrowed word which has been made to resemble English has been what??? Threee Major North American Dialects are what??
Monday, January 12, 2009 at 4:39pm

10th grade
Try to think a problem through, rather than looking for an equation to post values into. Here you need the force on the dummy, one way to calculate force is F=ma where m=mass and a=acceleration the question gives you the mass of the dummy. How do we calculate the acceration ...
Monday, January 12, 2009 at 5:02am

10th grade math
3(x-2)=4-(X-2) 3x-6=-4x-8 -3x -3x -6=7x-8 -6 -6 7x 2 7x 7x x=3.5
Wednesday, December 24, 2008 at 9:20pm

10th grade
Which bond type is soluble in alcohol? Metallic, ionic, polar covalent, or nonpolar covalent bonds? Which bond type has hard, brittle crystals? (I think the second is ionic, but not positive.)
Wednesday, December 17, 2008 at 9:10pm

10th grade Math
there are 3 main rules of logs 1. log A + log B = log AB 2. log A - log B = log A/B 3. nlog A = log A^n so your expression is log3 n^2 + log3 5 = log3(5n^2)
Tuesday, December 9, 2008 at 7:44pm

10th grade math
Do you mean 300/90 + 21 or 300/(90+21) ? What operation are you incapable of performing?
Friday, November 28, 2008 at 6:17pm

10th grade
I really need help! I need to know how a Table with polyatomic listed looks like. And Rules for naming Covalent Compounds (mono, di, tri,..) and How to find Lewis structure using the periodic table
Sunday, November 16, 2008 at 3:03pm

10th grade U.S History Search for second industrial revolution history.
Tuesday, October 28, 2008 at 7:22pm

10th grade U.S History
Explain the second Industrial Revolution. identify and explain each of the five condititions which allowed the second industrial revolution to take place in america.
Tuesday, October 28, 2008 at 7:12pm

10th grade math
Do not post a new question as a reply to another persons problem. use "Post a New Question" above. area of a parallelogram = base x height 85 = 17(height) height = ...
Monday, October 20, 2008 at 10:13pm

10th grade math
4x - 5y = 0 (#1) 4x + 6y = 12 (#2 x 2) -11y = -12 I subtracted them y = 12/11 back in #1 4x = 5(12)/11 x = 15/11
Monday, October 20, 2008 at 10:11pm

10th grade
There is some background information on Lenny's lack of control of his own strength. Before they got to the town, Lennie had already 'attacked' a woman in a sense. Also, he accidentally killed all the mice and puppies, once again hinting towards his lack of self-...
Saturday, October 18, 2008 at 12:22pm

10th grade
Look particularly at the character description of Lennie at this site. Also read the Themes and Motifs section.
Saturday, October 18, 2008 at 12:16pm

social studies (5th grade)
Jiskha Homework Help THURSDAY October 16, 2008 SCHOOL SUBJECTS - Art - Business - Computers - Download - English - Foreign Languages - Health - Home Economics - Instrumental - Math - Music - Physical Education - Science - Social Studies GRADE LEVELS - Preschool - Kindergarten...
Thursday, October 16, 2008 at 6:16pm

Can I get some advice on guitars? I'm a 10th grade student looking to purchase a guitar and self-teach. Would you suggest starting off with acoustic rather than electric? Is there a particular guitar you would recommend to a beginner? What about costs? thanks
Monday, October 13, 2008 at 9:35pm

10th grade,english
Group the following words into categories:allegory,fable,slogan,tactics​,Spontaneous Demonstrations,rebellion,second class,first class,comrade,fairy story,prose,poem,indoctrination,propagan​da,commandment,cryptic,morose,loyal,frug​al,sunday meetins,tactiturn,...
Sunday, October 5, 2008 at 4:36pm

Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an idiot... Thank You So Much -The mystery # is a decimal.. -The digit in the 1's place is less then ...
Monday, September 22, 2008 at 6:38pm

Posted by nicole on Monday, September 22, 2008 at 4:32pm in response to math. Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an idiot... Thank You So Much...
Monday, September 22, 2008 at 4:46pm

Posted by nicole on Monday, September 22, 2008 at 4:32pm in response to math. Can u please help me with this..this is my sons 6th grade work and im pulling my hair out..i would like to know how to do it so he does not think or his teacher that im an idiot... Thank You So Much...
Monday, September 22, 2008 at 4:38pm

10th grade
Do you mean 15 mm to dm (decimetres?) A decimetre is one tenth of a metre. As there are 1000 mm in one metre there are 100 mm in one decimetre.
Wednesday, September 17, 2008 at 5:56am

10th grade
Antonyms have the opposite meaning, while synonyms have a similar meaning. Look up each of the terms in a dictionary. The definition typically includes antonyms and synonyms, especially in a larger hard bound dictionary. We do not do your homework for you. I hope this helps. ...
Tuesday, September 9, 2008 at 2:12am

10th grade Mathematics
The 5th term and the 8th term of an arithmetic sequence are 18 and 27 respctively. a)Find the 1st term and the common difference of the arithmetic sequence. b)Find the general term of the arithmetic sequence.
Sunday, September 7, 2008 at 6:09am

10th grade
The common difference of an arithmetic sequence is 4. The 13th term is 103. Find the general term of the arithmetic sequence.
Sunday, September 7, 2008 at 5:59am

10th grade
engineering foundations 2 calculations and converstions question. How do I round off the following numbers to three significant figures? Or can you give me an example of how to round off number 1. 4.65735 m 2. 55.578 s 3. 4555N 4. 2768 kg
Wednesday, September 3, 2008 at 7:33pm

Im in the 10th grade in Chemistry 1 Honors. Im learning to write a chemical equation. Im confuse on that statement i was given for my homework. The products and reactants are just magnesium Sulfide and magnesium and sulfur? Then why are they talking about yellow crystalline ...
Tuesday, April 29, 2008 at 9:36pm

World History 10th grade
The World Court wasn't established until after World War II -- about 1947. The struggle for women's suffrage is not a peace effort. Please check your text again. This site may also help you. (Broken Link Removed)
Thursday, January 24, 2008 at 10:22pm

World History 10th grade
Identify three peace efforts of the late 1800s and rarly 1900s. (1)hoped for a permant end to the scourge of war. (2)a world court to settle dispute betwwen nations. (3)the struggle for women suffrage . tell me is this is right.
Thursday, January 24, 2008 at 10:14pm

I didn't find any online studies about high school grade levels. In my opinion, it doesn't make much difference what you call the school that houses any grade. There is no natural difference between 8th and 9th grades or 9th and 10th grades. Divisions between schools ...
Sunday, September 9, 2007 at 9:55pm

Euclidean Geometry
I am in the 10th Grade and my question is: The base of an isosceles triangle is 21cm. long. The altitude to the base is 9cm. long. What is the approx. measure of a base angle of the triangle? The tangent of that angle is 9/10.5 = 0.8571 Trigonometric tables will tell you that ...
Saturday, April 28, 2007 at 6:16pm

algebra 2
what is the 10th term of the sequence -62, -47, -32, -7, -2
Sunday, March 30, 2014 at 5:43pm

English 10th grade
This is confusing to me: "Truth, Sekhar reflected, is like the sun. I suppose no human being can ever look it straight in the face without blinking or being dazed. He realized that, morning till night, the essence of human relationships consisted in tempering truth so ...
Monday, March 24, 2014 at 6:38pm

so 1/4 in fourth and 1/4 in fifth grade 1 = 2/5 * 400 = 2 * 80 = 160 grade 2 = 2/8 * 400 = 2 * 50 = 100 grade 3 = 1/10 *400 = 1 * 40 = 40 grade 4 = 1/8 * 400 = 1 * 50 = 100 grade 5 = 1/8 * 400 = 1 * 50 = 100 grade 2 is 2/8 which is 1/4 by the way, sme as grades 4 and 5
Monday, March 24, 2014 at 3:23pm

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)
Monday, March 24, 2014 at 3:14pm

Find all angles, 0≤A<360, that satisfy the equation below, to the nearest 10th of a degree. 2tanA+6=tanA+3
Sunday, March 16, 2014 at 9:16pm

Suzan has a 69 as her grade in a class. If she does a quiz worth 9% of her grade what will her grade be?
Friday, March 7, 2014 at 11:13am

Anatomy & Physiology
Thank God i'm only a 10th grader.
Thursday, January 23, 2014 at 2:46pm

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