Showing posts with label kristin8-73. Show all posts
Showing posts with label kristin8-73. Show all posts

Kristin's Percent Post

10:58 PM

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In this post, I will be showing you how to do part A, and questions 4 and 5. I will be using a ratio table for both of them. Remember that what you do to one side, you have to do to the other side.
Part A

1) 245% of $356.80

245% of 365.80 is 874.16

2) 68 3/4% of 730
Here we have to convert the fraction into a decimal.

68 3/4% of 730 is 501.875

3) 360% of $129.95

360% of 129.95 is 467.82


Part B
Since these are word problems, you have to have a simple sentence answer at the end.

5) The 4900 seat hockey arena was 63% full. How many people were at the game?






6) The Nile River is about 209% the length of the Yukon River. If the Yukon River is 3168 km, how long is the Nile river to the Nearest km? Show your work.



Well, I hope that helped explain things. Please comment, THANKS!

explorer9-05

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Kristin's 2 Minutes to Make a Difference

8:10 PM

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Hi! So, this is our movie on animal abuse. Hurting animals is really wrong. Our movie tells you some important about animal abuse like: where/how you can help animals, what to do if you see animal abuse and much more! We enjoyed making this movie and we worked really hard, so I really hope you enjoy watching it.

Animal Abuse

explorer9-05

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Kristin's Last Fraction Post

10:58 AM

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Adding Fractions

In order to add fractions, you first need to have a common denominator. You can get the common denominator by listing some multiples and seeing which one they have in common. Or you can multiply the denominators together.


Once you have the same denominators, all you have to do is add the numerators.
Here is my example:



Remember that whatever you do to the bottom, you must do to the top.


Adding Mixed Fractions
It's the same as adding fractions. You must have the same denominators.




Subtracting Fractions
To subtract fractions, you (once again) must have the same denominator. Once you have that, just subtract the numerators.







Multiplying Fractions
When you multiply fractions, you multiply the numerators, then multiply the denominators.




Multiplying Mixed Fractions
To multiply mixed fractions, change the mixed fraction to an improper fraction, then multiply the numerators and denominators.




Dividing Fractions
There are a few ways you can divide fractions. The first is by using a ratio table.


Dividing Mixed Fractions

This time, I will also show you how to solve it using a reciprocal. It is the inverse of the denominator.
Word Problems

Problem 2 I used division to solve this problem.

Problem 3


In order to find a portion of a fraction, multiply the fractions.


Well, thanks so much for reading! Please comment!

explorer9-05

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The Pythagroean Theorem

7:28 PM

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In this post, I will be telling you about the Pythagorean Theorem. We were supposed to talk about the following things:

1- Vocabulary

legs - these are either side of the right triange that is not the hypotenuse. These sides also make up the right angle of the triangle

hypotenuse- this is the longest side of the right triangle and is the side opposite the right angle.

Greek- a person from or the language of Greece.

theorem- a mathematical statement whose truth can be proved on the basis of a given set of axioms(a self evident truth that requires no proof) or assumptions.


2- The pictures

The link between the pictures is that they all have something to do with the Pythagorean theorem.


The picture of the man is Pythagoreas himself. He is the one who came up with this theorem. He was a Greek mathematition who loved numbers and was a veagan. He belived that when you die, you were re-incarnated into an animal. Pythagoreas knew alot about the earth, like how it's a sphere, and is tilted and that is why we have seasons.






This is his theorem. It is used when you want to know what a side is of a right triangle. It states that a squared, plus b squared, equals c squared or in expanded form, (a*a)+ (b*b)= (c*c). It also states that the square on the hypotenuse is equal to the sums of the squares on the legs. It shows the relationship of the 3 squares. The c square is made up of the a square and the b square. Here is a picture to better explain this:



Right Angle Triangle:

Square:

  • Half of a square is a triangle

The formula for finding side C (the hypotenuse) is:

1. The formula.

2. Replace the letters with what you know.

3. Write the expanded notation so you won't get confused.

4. Simplify

5. Find the square root of your answer and c squared.

6. The answer.



Formula for finding A or B:


1. The formula

2. Replace letters with your data.

3. Write the expanded notation so you won't get
confused.

4. Simplify

5. Find the square root of your answer and A/B
6. The answer.

Problem 1


a.



b.
If you're wondering how I got 24, it's because each square has a length of 3 and there are 8 squares on each side so 8x3 = 24.


Problem 2



This is our video explaining how you get c.

Sorry for my mess ups.




pythagoras proof 1 from Louie Angela on Vimeo.


This is our video explaining how you get a. Sorry for the mistakes. We tried our best :)







pythagoras proof 2 from Louie Angela on Vimeo.


Sorry for the noise(not our fault) but I really hope that helped anyway.

Now comes the end of my post. I hope it was ok. Please comment(you'll be a good person) and tell me if there are any mistakes. Thank you!

explorer9-05

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Scribe Post for Feburary 2, 2009

9:52 PM

(5) Comments

Hey guys. Happy ground hog day!
Anyway, today in class we took a test. It mostly had word problems.
We also did page 50, questions 1 - 6. This is homework by the way. He showed us how to do the first two questions in class. Here they are:


x + 3 (x + 4) = 20
Now do the distributive property for the following things in red:
x + 3 (x + 4) = 20
You have to multiply the 3 with the x and the 4, so now it looks like this:
x + 3x + 12 = 20
Combine the x and the 3x (like terms):
4x + 12 = 20
Get rid of the constant by adding negative 12 to both sides:
4x + 12 = 20
- 12 - 12
Now the question is 4x = 8. Isolate the variable by dividing the 4:
4x / 4 = 8 / 4
You are now left with the answer of:
x = 2
Remember to verify!
The second question he gave us was:
6 ( y - 1) + 8 = 32
Do the distributive property:
6y - 6 + 8 = 32
Now combine the like terms, which in this case are the constants:
6y + 2 = 32
Get rid of the constant by adding negative 2 to both sides:
6y + 2 = 32
- 2 - 2
Now isolate the variable by dividing both sides by 6:
6y / 6 = 30 / 6
Your answer is:
y = 5
REMEMBER TO VERIFY!
Anyway, I hope that was even just a little bit helpful. Thank you SO much for reading my post! Remember that the homework is page 50, questions 1 - 6. Thank you! Please comment.

By the way, I choose Elmane to be the next scribe!

explorer9-05

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Pay it Forward

3:02 PM

(3) Comments

Pay it Forward

We watched the movie Pay it Forward at school and were asked to do one act of kindness for either a person we know, or a stranger. The goal was to make a difference in someone's life.
I decided to help out my mom by doing the laundry for her. I decided to do it on January 2, 2009. I never knew so much work went into washing clothes. First I had to sort everything and figure out how to work the machine. Next I had to make sure the dryer was on the right setting, so the clothes wouldn't shrink. Then I folded the clothes. Actually, it's not that hard once you get the hang of it.





It felt good to know that I had helped my mom, and now I always could! My mom was veryhappy that she could rest. She's always working so hard! Then I asked to to please pay it forward. She said she would. She's thinking about helping out one of her classmates(final year at university).

So now I must answer this question. Can one person make a difference? My answer is, yes! One person can make a difference. They don't even need to do something big. Every little thing helps. It also really good to help out. So remember to please take a moment to pay it forward!

explorer9-05

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Kristin's Big Book of Algebra

8:05 PM

(8) Comments

Chapter 1 : Integer poetry


Adding Integers - Haiku

Adding integers
Positives and negatives
Cancel each other


Partitive Division - Free Verse

Partitive division
Is like dealing cards
How many equal parts
Are in two groups
When we have
Negative six?


Subtracting Integers - Tanka

It does not exist
Instead, add the opposite
Then add normally
Subtracting integers is
Not hard now that you know how


Quotative Division - Haiku

How many groups of
Positive seven are in
Positive fourteen?

Rules for Multiplying - Free Verse

When multiplying integers
And there is an even amount of
Negative integers, or no negative integers
The product is positive

If there is an odd amount
Of negative integers
The product is negative

Thanks for reading!







Chapter Two:

Combining like terms and the Distributive Property


Hi! Just so you know(if you didn't already), my characters are Sakka and Momo(I know he's a lemur) from Avatar. Also(again, if you didn't already know) Sakka in a guy.


Sakka: Hi Momo!

Momo: Hey Sakka!

Sakka: Hey Momo, I was wondering.... Is n+3-5n+12 simplified, -6n+15?

Momo: AHAHAH! Ha ha ha lol ha ha!

Sakka: Waaa! If I'm wrong just tell me!

Momo: You're wrong.

Sakka: Waaa!What did I do wrong?

Momo: You added the positive n to the negative 5n instead of canceling(zero pairs).

Sakka: Well then, what should I have done?

Momo: Well first you regroup it. It would then be n-5n+3+12.

Sakka: Ok...
Momo: Then you add the variables and the integers. So n-5n would be -4n, and 3+12 is 15. So it would be -4n+15.
Sakka: Wow! You can solve anything!
Mom: Well yes. Almost...

Sakka: Can you help me with this question? 2+4(3n+8).
Momo: Well first I multiply the 3n and the 8 by 4 because the 4 was touching the bracket. Then I brought down the two and got 2+12n+32.
Sakka: That makes sense.
Momo: Next I combine the like terms, so it will be 12n+2+32.
Sakka: Yeah...
Momo: Which means my final simplified answer is 12n+34.
Sakka: What?! How did you get that? I thought it was 12n + 10?
Momo: Oh, you must have forgotten to multiply the 8. Its ok.
Sakka: Please don't tell Katara.
Momo: sigh, fine.

Thanks for reading!












Chapter 3


Hi there! These are the questions I chose to do:


  • Additive - 6+n = 9

  • Subtractive - -3 = -6+n


  • Multiplicative - 2n = 10


  • Divisive - n/3 = 4

Remember, what you do to one side, you must do to the other.


Additive - 6+n = 9





Subtractive - -3 = -6+n






Multiplicative - 2n = 10




Divisive - n/3 = 12


Chapter 4



Yay! It's our video! I really hope you enjoy watching it. Sorry for all the mistakes. I did not get enough sleep. \(-_-\)




Again, sorry for the mistakes in the video, but I really hoped you enjoyed watching it and reading my post. If my computer miraculously lets me put the video up then I will, but until then thanks for reading!




explorer9-05

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4:25 PM

(11) Comments

Scribe Post for November 13, 2008

Today in class checked our homework (green booklet pg. 5, 13-18) to make sure our answers are right. We spent most of the class on this. Since you already know the rules/theorem for multiplying integers, I will talk about the "new" thing we learned in class.

We learned what to do with questions like this:

Since there is no sign between the -2 and the bracket, that means you have to multiply. To solve this question, put the -2 in brackets:




Then solve the question like you would normally. Remember, there is an even number of negative integers in this question so the product will be positive.



The answer to this question is +6.



We also learned how to solve questions where the negative sign is outside the bracket. Like this:


That negative sign, all by itself means -1. So the question will now look like this:


(-1)(2)= -2 . Now we answer the rest of the question:
You can also do it this way:

When you see a negative sign beside a bracket (uh-oh) you change the integer to a positive.


Well that's all for today. Remember, homework is the green booklet pg. 5, questions 19 - 36. I hope my pictures weren't too bad ;). I choose Elmane as the next scribe. Please leave comments. Thanks for reading!

explorer9-05

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Kristin's Integer Story

1:23 PM

(5) Comments


Aleiah's Integer Adventure :The Quest for Juice
One morning, Aleiah woke up, and wanted some juice. When she opened the fridge, she discovered that they were out of juice!
"Oh no! Now I will have to go out and buy some!" cried Aleiah.
So she put on her purple sweater and got her Hello Kitty coin pures and set out. On her way, she came across a box in the middle of the sidewalk.
"I wonder whats inside..."she said,"I will open it."

Inside she saw this question:





"Wow this is weird," she thought," but since I opened it, I might as well solve it.
Aleiah used the number line to solve this question.


"That was easy" she thought,"I am such a genius!"

Aleiah continued walking until a man in blue scuba gear stood in her way. She couldn't walk around him because the road was being fixed, and he took up the whole sidewalk.

"If you answer my question, I will move." said the man.

"Sigh, okay"she said," but only because I love juice."
This was the man's question:



"I can solve this!" Aleiah exclaimed. This is how she solved it:





"Very good..." said the man, and with that, he sucked in his enormous stomach and let her through. Yes, it was all very weird...

"Wow, this is a very unusual day..." thought Aleiah,"Cool!"

As you probably guessed, another weird thing happened. She probably would have been at the store by now, but noooo. Everyone just had to keep asking her math questions. This time, it was a girl.

"My calculator broke." she said,"If you answer this question, I will give you a coupon for a free can of juice."

"Okay! Sure! Bring on the question." said Aleiah. Free juice!

"This is my question..."




"Oh! I know how I can solve this!" she said. Here is how she did it:



"Thank you very much for your help, here is the coupon."she said.
"YAY! Thanks! Free juice!" yelled Aleiah. This was turning out to be a good day.
Suddenly, a huge box fell from the sky!
"Wow, that was really random."thought Aleiah,"I wonder if something is trying to tell me something..."



The box was locked, but there was (you guessed it) an integer question on the side.
Here is the question:



"Hmm, I think I know how I can solve this..."


This is how she did it:
As soon as she had solved the question, the box became unlocked. Now normally, Aleiah wouldn't have looked in the box and would have just gone on her way to the store. Today however, wasn't a normal day. So she looked in the box. Whoosh! She was transported to another world! Yes, this story is very random.
Where has she been transported to? Will she ever return? Will she ever get to use her free coupon!? Find out next week!
Part 2
It is now next week. Where were we... Oh yes!
The world she was transported to was...CANDY WORLD! (how was your Halloween?) Yes CANDY WORLD. The sky was pink, there were rainbows and lollipops. Cotton candy trees as far as the eye could see. There was even a chocolate river! It didn't look as good as it tasted though.
"This looks a lot like the Candy Land board game..."said Aleiah.
"Greetings tall one!" said a short man called.
"Who are you?" asked Aleiah,"You kind of remind me of the little people from the Wizard of Oz movie."
"They were based on us! We are the ORIGINAL Lollipop-kin!" said the short guy.
"Do you have any juice?" she asked,"I'm really thirsty."
"Sorry, but we only drink chocolate beverages" he said," we only need to sleep for 3 hours!"
"Now I kmow why you're vibrating" she said," How can I get out of this juice-less world?"
"Just follow the yellow brick road till you get to the Wunka (I meant to spell it this way) factory. Then the great scientist of Oz will help you."
" Thanks. Say, mind if I take a peice of this house for the road?" she asked, already breaking off part of the chocolate door.
" Who hasn't already?" he said with a sigh. "I'm off to Home Depot"
On her way, she met a scarecrow driving a tin car. The scarecrow said the would give her a ride if she could answer their question:
(+15) - (+17)
"Hm... I got it!" she exclaimed. Here's her solution.
(+15) + (-17) = -2
"Wow! You're smart. " said the tin car.
"Get in." said the scarecrow with a smile.
The trio drove until they reached the Wunka factory. It was HUGE! And smelled like mint chocolate! Hmm...
Once inside, she told the Scientist of Oz her problem.
"All you need to do is tap your shoes together... and solve this integer question."he said.
"There's the catch" she mumbled under her breath.
This was the question:
8 - (-7) + 3 - (-5)
"Well, this is different. But I can do this!". Here's how Aleiah solved it.
8 + 7 + 3 + 5 = 23
"Now tap your shoes." he reminded her.
"Theres no place like home-"
"Theres no need for that." he said, stifling a laugh.
As soon as she tapped her shoes together, she found herself in front of the store. Was it all a dream? Then she felt the melting chocolate in her pocket. No, it was definetly not a dream.
She was finally able to buy her juice. Thanks to the coupon, she bought her favourite Fruitopia strawberry-kiwi juice. Yay! But just when you think things are back to normal, the cashier called after her.
"We need you for a top secret mission. Are you in?" said the lady who was suddenly dressed in black. Everyone wants a peice of the genius.
"Will there be juice?" Aleiah asked.
"Sure" said the lady.
" Ok then. I've got nothing to do."
What will happen next? Will she get a cool black suit? See next time on "Tales of Integers!"
Thanks for commenting!

explorer9-05

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