April 20, 2014

Homework Help: 9th Grade

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9th grade
soil dwelling insects are examples of invertabrates. explain why this statement is true and use examples of two soil dwelling insects
Tuesday, March 23, 2010 at 7:26am

9th grade
1j + 2c =11 1L + 1c = 5 1j + 2L = 3 1j + 1c + 1L = t What is t?
Monday, March 22, 2010 at 10:58pm

9th grade
5x-3y=23...............equation (1) 3x+5y=7.................equation (2) Eq. (1) x 5: 25x-15y=115......Equation (3) Eq. (2) x 3: 9x + 15y=21........Equation (4) Eq (3)+Eq. (4): 34x = 136 (eliminating y) Therefore, x = 4
Tuesday, March 16, 2010 at 6:56pm

9th grade Algebra
A health food store mixes granola that costs them $2 per pound and raisins that cost them $ 4 per pound together to make 25 pounds of raisin granola. How many ponds of raisins should they include if they want the mixture to cost them a total of $80?
Monday, March 1, 2010 at 1:32am

Math, not "9th grade"
Assistance needed. Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
Sunday, February 28, 2010 at 10:58am

9th grade SCIENCE
organic compounds: rubbing alcohol gasoline vegetable oil butter sucrose starch vitamins tartaric acid vinegar maltose corn syrup (dextrose) High Fructose corn syrup (fructose) honey (50:50 mix fructose:glucose)
Friday, February 26, 2010 at 5:12pm

9th grade SCIENCE
I have to list 5 different organic compounds; list different types for each; name; structure; properties; and uses. I am a bit confused as to what an organic compound actually is. I know it must contain a carbon, but would vegetables or household foods be considered organic ...
Friday, February 26, 2010 at 3:56pm

9th grade
Does it have to be informative, persuasive, etc? Your best bet would be to do something that is interesting you because, you don't need to really memorize anything because you can just state your opinions on it and then it'll be easier to talk about it for as long as ...
Monday, February 22, 2010 at 4:50pm

Chemistry, not "9th grade"
Assistance needed. Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
Sunday, February 21, 2010 at 5:23pm

9th grade
A student put 12.4 grams of potassium sulfate in 29 ml and stirred for 3 hrs. he saw that not all of the solid dissolved, so he removed the extra solid and found it had a mass of 3.4 grams. what was the solubility of the chemical?
Sunday, February 21, 2010 at 4:44pm

9th Grade Math
Ok, well you need a system of equations. 5x+3.50y=2265 x+y=543 x=543-y 5(543-y)+3.50y=2265 solve for y and substitute in other equation to solve for x can you take it from here?
Friday, February 12, 2010 at 9:50pm

9th Grade Math
The money collected at a school basketball game was 2,265 from 543 paid admissions. If adult tickets sold at $5.00 each and student tickets sold for $3.50 each, how many tickets of each kind were sold?
Friday, February 12, 2010 at 9:38pm

9th grade geometry
That depends upon the angles of the triangle. If it is equilateral, each side is 15 m. If it is a right angle isosceles triangle, the two equal sides are each 13.18 m long and the hypot4nuse is 18.64 m. The longest side's can be as long as 22.5 m.
Friday, February 12, 2010 at 10:12am

9th grade
In a cube all sides are the same length, so the surface area of one face is (5x-3)^2 So the surface area of all 6 faces is 6(5x-3)^2 To find what it is for x = 3, sub x=3 into the above expression.
Wednesday, January 27, 2010 at 8:42am

Algebra (9th grade)
21.5 * 0.3 = 6.45 $21.50 - 6.45 = $15.05 15.05 * 1.07 = $16.10
Thursday, January 21, 2010 at 7:11pm

9th grade math
7/200 for the Ecuadorian, 10/199 for the Kenyan (one non-Kenyan person is already gone). The probability of both (or all) events is found by multiplying the probabilities of the individual events. I hope this helps.
Wednesday, January 13, 2010 at 11:33pm

9th grade math
The slope is m = (2-1)/(5-9) = -1/4 so the general equation is y = (-x/4) + b where b is a constant. Evaluate b by making the line go through either point. For example 2 = (-1/4)*5 + b b = 13/4 Therefore the final equation is y = -x/4 + 13/4 or y = (13-x)/4
Monday, January 11, 2010 at 7:11am

9th grade science?
Sorry, nothing comes to mind within that category for me either. But then, this is not my area of expertise. If it was just blue and round, I would think of water drops, but I don't know where the striped would fit, unless it is reflecting something striped.
Thursday, January 7, 2010 at 11:14am

9th grade science
1)write the fomulas for the following compound: Magnesium hydroxide. 2)Write the names of the compound: Ba(ClO3)2 *the numbers are the subscripts* I really don't understand how to do those two, I did the rest of them. I could really use the help. THANKS!!
Monday, January 4, 2010 at 5:19pm

9th grade
The fly a combined 2100km 2100km=500km/hr*time1 + 700km/hr*time2 but time2=time1-1 2100=500*time1+700(time1-1) now solve for time 1
Monday, November 16, 2009 at 10:56am

9th grade
At noon a private plane left Austin for Los Angeles, 2100 km away, flying at 500km/h. One hour later a jet left Los Angeles for Austin at 700 km/h. At what time did they pass each other?
Monday, November 16, 2009 at 7:20am

9th grade (chemistry)
The subject is chemistry. Chemical reactions do not result in a change of mass. Mass is conserved, whether the reaction goes to completion of not, and regardless of whether any reactant exceeds stochiometric proportions.
Thursday, November 12, 2009 at 7:34am

9th grade
10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?
Thursday, November 12, 2009 at 7:32am

9th grade
10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?
Thursday, November 12, 2009 at 7:25am

9th grade
Velocity is speed with a direction. In this case, there is no direction, so just put the speed. It would be 200m per 2 minutes = 100m per 1 minuite = 6000. per hour = 6 km h-1 (km/h) will
Monday, November 9, 2009 at 12:39am

9th grade Math
No , first you multiply each side by 8 to get 7n - 1= 48 now add 1 to each side 7n = 49 divide both sides by 7 n = 7 check: in original ((7(7) -1 1)/6 = (49-1)/6 = 48/8 = 6 Check!!
Monday, November 2, 2009 at 7:50pm

9th grade Math
(7n-1)/(8)=6 Okay, I think I add 1 to both sides, so now I have.. (7n)/(8)=7 And then, to get n by itself I divide 7 into both sides, so now I have.. n/8=1 n=1 is what I get, but I'm not sure, could someone please check this for me?
Monday, November 2, 2009 at 7:46pm

9th grade
There won't be a pattern. Take the factors of each number, include 1 and the number itself. Count the number of factors. This is the number of "state" flips. If it is even, the locker is closed. If it is odd, the locker is open.
Sunday, November 1, 2009 at 4:35pm

9th grade
the variable cost is 10/km and a 2.5-km trip costs $40, determine the equation relating cost, C, in dollars, and distance, d, in kilometers
Friday, October 23, 2009 at 7:22pm

9th grade (math)
the surface of our earth is 20'c for every km, k below the surface the tempature increses by 10'c. let t represent the tempature in 'c 1a write an equation that represent the relationship between disatnce k and t tempature 1b. what is the slope and and y-intercept
Saturday, October 17, 2009 at 12:05pm

9th grade (math)
im learnin about y=mx+b 1.describe the line you think each equation represent Y=x, y=5, x=-3 2. The equation of a line is y=mx+2. determione the value of m when the line passes through each point D(12.5) s(1.-3) e(-2.6) a(-5.1)
Saturday, October 17, 2009 at 12:03pm

9th grade : Algebra
the output of a finction is more 5 more than 2 times the input. find the input when the output is 17.
Thursday, October 8, 2009 at 8:26pm

9th grade
i need help finding what these words are from these clues: possible opening found in the cell membrane substance which makes up cell walls granular material in the nucleus that thickens to become chromosomes the endoplasmic reticulum is a network of.... structures responsible ...
Tuesday, September 15, 2009 at 8:52pm

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

9th grade algebra
5^2 = 25 -2 -25 = -27 -(-27) = 27 Subtract 6 from that.
Sunday, September 13, 2009 at 11:06am

9th grade (geography)
Wednesday, September 9, 2009 at 12:24am

9th grade
in which of the following sentences does the subject come after the verb a. on the next street, you'll find the shoe shop. b. whenever he's in town, jeremy likes to go fishing. c. brock traveled over miles of dirt roads. d. where is my elvis CD Thank you!
Sunday, September 6, 2009 at 9:08pm

3rd grade
even number? adding to nine? well, even means the last digit is 0, 2, 4, 6, 8, between 9th and 23, so the first digit is 1 or 2. How can you get 1 or 2 added to one of the even digits to make 9?
Wednesday, August 26, 2009 at 7:58pm

9th grade summer reading
i have to do an essay about a 25 word passage for summer reading. i have to state why and what it means to me. i have no clue how long it should be
Wednesday, August 26, 2009 at 11:29am

Im in 9th grade algebra. and we are learning adding and subtracting real numbers. im stumped on a couple of problems. I get confused when i see the absolute value lines. Does that change the munber? Do i just go on with the problem as if they werent there? And i have NO idea ...
Tuesday, August 25, 2009 at 5:18pm

9th grade classes
hey MC why you want to take easy classes? Take classes that challenge you to do well, and you'll do better in the rest of your high school years, make collage a little easier, and make a better life for your self in the working world.
Thursday, August 20, 2009 at 9:14pm

Algebra 1, 9th grade
prime expressions cannot have factors. The prime number 13 has no factors except itself. 5z has two factors, 5, and z.
Tuesday, August 4, 2009 at 8:02pm

Algebra 1 9th grade
"steepness" is measured by the absolute value of the slope, m, used in the standard linear equation y=mx+c The greater the value of m, the "steeper" is the curve. If you transform/interpret equations to the above form and compare the values of m in each ...
Friday, July 24, 2009 at 12:41am

Algerbra 1, 9th grade
The slope intercept equation for a line is y = mx + b where: m = slope b = y intercept
Thursday, July 23, 2009 at 12:51am

9th Grade Courses
MC, neither of those courses will do much for college preparation. I personally think you are too young to be making that decision now, narrowing your options for the future. Is Biology out of the question?
Wednesday, July 15, 2009 at 3:08pm

I remember i was in English Honors in the 9th grade and we would have stupid words like that on our vocab list. Just goes to show how retarded the school system is and how little they expect of us.
Sunday, June 14, 2009 at 9:35pm

9th Grade Biology
Like animal life, plant life has evolved. Rose bushes have not "always been around on earth." I hope this helps. If not, repost your questions in more detail. Thanks for asking.
Monday, June 1, 2009 at 11:59am

9th grade global
one effect of rgged, mountainous geography on the civilization of ancient Greece was the development of -absolute monarchies -seperate, independent city-states -extensive trade with the Persians -belief in one God
Sunday, May 31, 2009 at 2:25pm

9th grade Global
China under th Han dynasty and the Roman Empire were similar in that both grew wealthy because they..... -developed extenive trade networks -encouraged democratic ideals -established free-market economies -created classless societies
Sunday, May 31, 2009 at 2:21pm

9th grade classes
OK, here's a list of the subjects I think I want to take: English 1 Refresher Math Life Science, Biology, or Environmental Science...not sure which one would be the best?? I want to take Sociology for Social Sciences Health And Fine Arts is mandatory Sound OK? Thanks -MC
Tuesday, May 26, 2009 at 1:58pm

9th grade
y/6>y/12+1 multiply each term by 12, the common denominator. 2y > y + 12 subtract y from each side y > 12
Sunday, May 3, 2009 at 1:40pm

9th grade science
Explain which statement is correct: energy is lost when water is boiled or the energy used to boil water is present, but it is no longer in a usable form unless you use work or heat to make it usable.
Tuesday, April 28, 2009 at 6:38pm

9th grade Math
-8= (y/4) so multiply both sides by 4. On the right side the 4's will cancel and on the left it will be -32. -8 = (y/4) -8*4 = (y/4)*4 -32 = y Hint: Substitue your answer back into the original equation to check your work. So in this case check, does (-32/4) equal -8? Yes!
Thursday, April 23, 2009 at 9:33pm

9th grade
* I have a project to do for William Shakespeare, Were i have to make some sort of amusement park and i need help thinking of what rides i should put in my amusement park but those rides have to relate to Shakespeare in someway. Plz Help!
Wednesday, April 22, 2009 at 10:45pm

9th grade algebra
Use parentheses to make things easier. [(x^2)-(4x/5)]*[(2/x)-2] [(x^2)*5/5-(4x/5)]*[(2/x)-2*x/x) (5x^2-4x) * (2-2x) --------- ---- 5 * x Multiply through to get: 10x^3+18x^2-8x -------------- 5x
Thursday, April 9, 2009 at 3:33pm

9th grade algebra
drwls here is another one of those questions like the last one we submitted if this will help with what they are after. 200 dollars/1 ton x 100 cents/1 dollar x 1 ton/2000 pounds x 1 pound/16 ounces could you please show me how you come up with the answer? I am not sure how ...
Thursday, April 9, 2009 at 1:07am

9th grade algebra
Are you sure that does not start out as 30 miles/hr? If so, you would end up after doing the multiplication with the equivalent speed in ft/sec. Otherwise, it is 44 ft hr/ton*sec, which makes no sense
Thursday, April 9, 2009 at 12:57am

9th grade algebra
I've never seen a problem like this, please help. I think we have the number part right but what would the unit be once the math is done? Please show me how you came up with the answer so I will know for next time. 30 miles/1 ton x 5280 feet/1 mile x 1 hour/60 minutes x 1 ...
Thursday, April 9, 2009 at 12:48am

9th grade - Algebra???
standard form is ax+by=c. so just plug them all into that form. for example, the first one would be -14x-18y=24. you have to change the sign of 18 because you move it to the other side of the equation.
Saturday, April 4, 2009 at 4:48pm

9th grade math
x^2 - 10 = 0 Add 10 to both sides, then get the square root of both sides. I hope this helps. Thanks for asking.
Friday, April 3, 2009 at 12:55pm

9th grade Math/Logic
If it only take one germ a minute to split into two germs, then the two germs have a one minute head start — 59 minutes. I hope this helps a little more. Thanks for asking.
Wednesday, April 1, 2009 at 1:01pm

9th grade
9/[(√27)^5(√a)^5] = 3^2/[3^(15/2)(a^2√a)] = 3^(-11/2)/(a^2√a) or = 1/[(3^5)(3^1/2)(a^2√a)] = 1/[(243√3)(a^2√a)] messy looking thing! actually looks better in the original form of 9/(√27a)^5
Sunday, March 29, 2009 at 11:58am

9th grade weighte average
The final score is the sum of the weights times scores of the parts. For instance, if tests are scored at 50 percent, homework is 10 percent, and class participation is 40 percent, then weighted score= .5 testavg + .1 hmwavg + .4 classscore
Thursday, March 26, 2009 at 7:31pm

9th grade Pre Algebra
The way you have typed the formula is confusing. y^2 = y squared You have both - and + signs before 3y. If you mean both plus and minus (±), can be done by pushing + and Shift and alt/option (at least on a Mac). Please repost with revised formula and be more specific ...
Wednesday, March 25, 2009 at 10:15am

9th grade science
Saturday, March 21, 2009 at 5:56am

9th grade Algebra
so for example 4(7)-2y=32 or -3(7)-5y=-11 and then it equals 28-2y=32 or -21-5y=-11 then what from their this is driving me insane!
Wednesday, March 18, 2009 at 7:33pm

9th grade Algebra
I would multiply the top equation by 5, and the bottom equation by 2 20x-10y=160 -6x-10y=-22 then subtract the bottom equation (remember to change the signs) 26x=182 solve for x.
Wednesday, March 18, 2009 at 7:16pm

9th grade Arts and Culture
Plus, you may have heard the expression "art is in the eye of the beholder." For example, a friend of mine adores modern art, some of which just seems to be "scribbling" to me! Sra
Saturday, March 7, 2009 at 11:52am

9th grade math
y=5x+2? --------m = 5 A:5y-x=1--------m = 1/5 not parallel B:5x-y=1--------m = 5 yes parallel C:y-5x=4 -------m = 5 yes parallel D:10x-2y=1 -----m = 5 yes parallel
Sunday, March 1, 2009 at 4:34pm

9th grade
25 inches -----> 1450 feet 1 inch -------> 58 feet (I divided by 25)
Thursday, February 26, 2009 at 10:08pm

9th grade
My question is on scales etc.. heres the question | The Sears Tower is 1450 feet tall. If a model is 25 inches tall, find the scale.
Thursday, February 26, 2009 at 9:35pm

9th grade lit poem
Do you believe this poem is negative or positive tone. I think it's positive because the speaker has positive thoughts.
Tuesday, February 17, 2009 at 5:25pm

9th grade lit poem
In the Alabama poem, the hands of many colors represent different races -- but all in the red clay soil, the essence of Alabama.
Tuesday, February 17, 2009 at 5:21pm

9th grade lit poem
The setting in the first part of the poem is in a car driving on a road north of Tampico. The setting shifts, though, in the third stanza. There is no particular place named, but it's obviously referring to a time later in the poet's life.
Tuesday, February 17, 2009 at 5:16pm

9th grade lit poem
To me the backseat symbolizes being taken somewhere by her parents. She was scared and seeking reassurance. The borders are literally borders between countries, yet they also represent the many changes we all go through in our lives.
Tuesday, February 17, 2009 at 4:57pm

9th grade lit poem
I need assistance I was on here before with this poem but not with the same name (Lemon Pie). The poem is making a fist by Namomi Shihab Nye. I don't understand it. Could someone try to make me understand it I would appreciate it thanks for you time LP
Tuesday, February 17, 2009 at 4:40pm

9th grade(English)
Which sentence contains an adverbial clause? 1.We placed our blanket under a tall shade tree at the park 2.Before we could eat our picnic lunch, some ants needed to be uninvited. 3. We decided to distract them with an open bottle of suntan lotion placed strategically in the ...
Monday, February 9, 2009 at 2:08pm

how do i reword this sentence to a 9th grade leverl. students know that charged particles are sources of electric fields and are subject to the forces of the electric fields from other charges.
Monday, January 26, 2009 at 9:25pm

9th grade HEALTH
Saturday, January 24, 2009 at 2:46pm

sra JMcGuin spanish
Hi This is sam's mom - you have helped my child enormously - Whenever work is done with you the grade is amazing. Finals ae coming up and I think you are close to us. We live on the west side and go to school in the valley. SO anywhere would be convenient - We have a tutor...
Thursday, January 1, 2009 at 6:12pm

URGENT!!!!9th grade tech
that simply did not answer my question the slighest bit, that just gave me a bunch on unessary links about searching read the question again otherwise if you dont know the answer simply dont answer
Thursday, December 18, 2008 at 7:36pm

9th grade math
if you sketch it and make some quick slope calculations, you will find that opposite sides have the same slope, so you have a parallelogram.
Thursday, December 18, 2008 at 1:48pm

9th grade
Thursday, December 11, 2008 at 2:14pm

9th grade
Are you trying to solve for y? 12y-5y-2=0 12y-5y=0+2 7y=2 y= 2/7 Is this what you were asking for?
Monday, December 8, 2008 at 11:52pm

solve for the variable ã(square root) ãy+6 - ãy = ã2 would i square both sides first? im stuck
Monday, December 8, 2008 at 7:14pm

9th grade geography
Different religions and ethnic groups have greatly influenced the Balkans. When the Ottoman Empire conquered this region, some people converted from Christianity to Islam. Other foreign influence further alienated the people from each other. Think about the creation of ...
Monday, December 8, 2008 at 6:21pm

9th grade chemistry
That is perchlorate ion. Per means more and ClO4^- has one more oxygen than the "normal" acid, ClO3^-. So ClO3^- is chlorate and ClO4^- is perchlorate.
Thursday, December 4, 2008 at 6:31pm

9th grade chemistry
Yes, the name you have given it is correct. NaHCO3 is sodium hydrogen carbonate. NaH2PO4 is sodium dihydrogen phosphate Na2HPO4 is disodium hydrogen phosphate
Thursday, December 4, 2008 at 6:28pm

9th grade : Algebra
Can you answer this question which equation represents the direct variation relationship of the equation x/y=1/2 the answer choices are A-y=2x B-x=2y C-y=3x D-y=x+1/2 and can you show the work
Wednesday, December 3, 2008 at 5:16pm

i am in 9th grade biology and i am REALLY confused about the difference between controll variable, responding variable, manipulated variable and controll group. any help would be great. i have a test TOMORROW!!!!
Wednesday, December 3, 2008 at 4:27pm

9th grade
for my physical science class were supposed to name ionic compounds and change the name into a formuala but i dont understand how to do it my teacher didnt explain it fully. Ex:Na2CO3= Sodium Carbonate Sodium phosphide=Na3+P-3
Tuesday, December 2, 2008 at 9:19pm

9th Grade Math
You didn't say in what setup your three angles are found. Are the the interior angles of a triangle ?? if so, then you are not correct. then x + x+10 + 130 = 180 2x + 140 = 180 2x = 40 x = 20 that would make angle1 = 30º
Tuesday, December 2, 2008 at 7:50pm

9th Grade Math
Hey, I finished my math homework, and im not so sure i did it correct, so can someone do this question and i will look at the answer to see if my work was correct this is State and Justification Given : m<4 = 130degrees, m<1 = x+10 , and m<2 = x Prove : m<1 = ...
Tuesday, December 2, 2008 at 6:50pm

9th grade : Algebra
y = mx+b , thats the equation so we do this 5y = 10-2x 5y = -2x + 10 now we want to get rip of the 5 in the Y so we do -2x / 5 10 / 5 so its -0.4 and 2 so y= -0.4x + 2 get it?
Tuesday, December 2, 2008 at 6:45pm

9th grade : Algebra
Okay, I see. First take 2x away from both sides. That makes: 5y= 10-2x Now, I'm not positive about this part, but I think you would divide the whole side by 5, therefore making: y = 2-.4x or y = -.4x + 2 Hope I helped!
Tuesday, December 2, 2008 at 4:04pm

9th grade
3t+8(2t-6)=2+14t 3t + 16t - 48 = 2 + 14t 19t - 14t = 50 5t = 50 t = ?
Wednesday, November 19, 2008 at 9:11pm

9th grade
two men worked 8 hours each and they built 32 frames for sheds. what is the productivity or output per hour add ______ hours hours+_____ hours here ______ hours
Monday, November 17, 2008 at 8:46pm

9th grade
1.How do you think Andrew Jackson might have countered his critics' accusation that he was acting like a king? 2. In whar ways do you think the tariff crises of 1828 and 1832 might be considered important milestones in American history beofre Civil War?
Saturday, November 15, 2008 at 1:32pm

9th grade
Did you notice that the words you, your, yourself appear 13 times in this assignment? We can't possibly answer these questions for you. Their purpose is to get YOU to think. Since you're paying for this class, it would behoove you to take advantage of the educational ...
Monday, November 10, 2008 at 11:02am

9th grade biology honors
Because jellyfish have more salt then the lake, it is gonna try to reach an equilibium, so it is gonna take more water from the lake and the cell will swell!!
Thursday, November 6, 2008 at 8:26pm

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