Haylea's BT

Take 9 from 6, 10 from 9, 50 from 40 and leave 6.

Answer: 9-6= 3
10-9= 1
50-40= 10
3+1= 4
10-4= 6

Josh Adams Brainteaser

A large truck is crossing a bridge 1 mile long. The bridge can only hold 14000 lbs, which is the exact weight of the truck. The truck makes it half way across the bridge and stops. A bird lands on the truck. Does the bridge collapse?

No, it does not collapse. Because the truck has driven half a mile, you would subtract the gas used from the total weight of the truck.

brittany noonan brain teaser

I have seven letters. The first two stand for a boy. The
first three stand for a girl. The first four stand for a brave boy. But all of
my letters stand for a brave girl. What word am I?

Answer:
Heroine

Marriage

Answer: she is a Minister

Marriage

Sam Brown's BT
A women legally maried 3 men, one was a lawer, the other a docter and the last one was a hobo. She did not get a divorce or an enolment, or legally seperated. How is this possible??? 0_0

Homework by Ryan McCarvill

Ms Murphy substituted for Mrs Spence today. We started Chapter 6 Lesson 6, which is Equations of a Line, Point Slope Formula. We learned the point slope formula, y-y1 = m(x-x1), which is used to write point and slope or to find two points. We did some practice problems and Ms Murphy assigned questions 2-32 even on page 282.

My Brainteaser (Pierce Clarke)

I went into the woods and got it I sat down to seek it I brought it home with me because I couldn't find it
What am I?!?! duh duh dunnn!!


A splinter

Homework for the 12th

Homework

Page 267 # 8-18 even (method 2)
Page 288 # 1-18 all

Find the slope, y intercept and graph the line for 3X-4Y=12

Tim's brain teaser

Question

Santa Claus sometimes helps the elves by making some toys. He's not as fast as the elves, but he can still make 30 toys each hour. In order to keep from getting bored he starts each day by building 50 trains and then switches to building 50 airplanes. Then he switches back to trains and keeps switching back and forth until the day is finished. If Santa starts work at 8:00am, when will he finish his 108th train?

Answer:

Because Santa started with trains, the 108th train will occur during his 5th batch of toys. Thus he will have built a total of 208 toys. At 2 minutes a toy, his 108th train will happen 416 minutes after he starts work, which is 2:56pm.

Tim's brain teaser

Question

 

Santa Claus sometimes helps the elves by making some toys. He's not as fast as the elves, but he can still make 30 toys each hour. In order to keep from getting bored he starts each day by building 50 trains and then switches to building 50 airplanes. Then he switches back to trains and keeps switching back and forth until the day is finished. If Santa starts work at 8:00am, when will he finish his 108th train?

 

Answer

Because Santa started with trains, the 108th train will occur during his 5th batch of toys. Thus he will have built a total of 208 toys. At 2 minutes a toy, his 108th train will happen 416 minutes after he starts work, which is 2:56pm.

 

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Windows Live helps you keep up with all your friends, in one place.

Homework for Monday the 11th

Homework

Page 267 # 1-6 and

graph and give the point and slope for each
1. P (-3,5), m= undefined
2. Q (2,7), m= -4/3
3. R (0,-3), m= 5/2
2. S (4,2), m= 0

Max Harris's brain teaser

Mom and Dad have four daughters,
and each daughter has one brother.
How many people are in the family?


Seven. The four daughters have only one brother, making five children, plus mom and dad.

Alyson Campbell's Brain Teaser

A man is wearing black. Black shoes, socks, trousers, coat, glovesand ski mask. He is walking down a back street with all the streetlamps off. A black car is coming towards him with its light off butsomehow manages to stop in time. How did the driver see the man?


Answer:
It happened during the day.

Homework: 7 May 2009

7 May 2009

Page 261: #1-10, 19 (due 8 May 2009, 12:00)

James Kyte

Homework: 6 May 2009

6 May 2009

Page 256: #1-11 odd (due May 7 2009, 12:00)

James Kyte

Homework Assigned (Mrs. Spence)

In class today, we went over how to graph linear equations. We also learned about the difference between continuous and discrete graphs. Mrs. Spence gave us time to fix some of the problems we had done for today. She also assigned more for us to work on.

For tomorrow, we should have completed:
p219 #26 (if you haven't already)
p219 #1-20

[James wasn't in class, so I posted it for him.]

Posting to the Blog by e-mail (Mrs. Spence)

This is what it looks like when you e-mail your blog post. Send it as
an e-mail as follows:

Put the title of your blog entry in the Subject.
Type the main text in the message box.
Send the e-mail to the following address:

jjspence.math421pm@blogger.com

Homework: 4 May 2009

4 May 2009

Page 214: #1-16 (due 5 May 2009, 12:00)

Tip: Having trouble with your homework?  Reading the Introduction to Linear Relations booklet or "5.1 Binary Relations" (page 212 in Text) may answer questions.

James Kyte

(Sorry for the late post)

What row of numbers comes next in this series?

1
11
21
1211
111221
312211
13112221
Answer: 1113213211 After the first line, each line describes the previous line

One One

Two Ones

One Two, One One

(and so on...)

Homework from April 30th - Mrs. Spence

On Thursday, we started chapter 5 by looking at relations and different ways that relations are expressed. We also learned about domain and range and how to properly write them. Homework for Monday is p214 #1-16. Don't forget to finish your Creative Graphing Assignment since it is due on Monday as well!

Creative Graphing Assignment

This was the assignment as written on the board in class. Click on the image to enlarge it.

Basically, you are to create a set of directions that will be given to junior high students to practice plotting points properly. If they do and your directions (points) are accurate, they should reproduce your drawing. In the process of doing this assignment, you will get lots of practice reading points on a graph - something that I've found that a number of students have difficulty doing (at least in the past).

Sample directions:

Plot the following points and join them in order. (3,6), (9, 1),
(-2, 5)...

If you have more than one item in the drawing (ex. a window in a house or an eye of a puppy), separate the sets of points with another set of directions.

ex. Now join the following points...

To Hand In:

- the grid paper with your drawing on it (points indicated)

- a separate sheet with the directions on it (including all points)

If you have any questions, e-mail me!

Hello PM Class :) 

I had to leave class the other day early, so unfortunately I don't have all the details. :( But i do have the homework that was assigned.

Pg. 133 #1-11 ODD

#23-43 ODD

#56

April 20th Homework by Amy Marchbank!

Today we learned something new, we learned how to Factor Long Trinomails. We Wrote down notes from the Smart Board and did some practice problems. Ms. Murphy also mention that if you do not do your homework, you have three nights to do it, and if you show her the finished homework within the three days you can still get a complete on the homework! She also mentioned, when you are gone away on a trip and then come back you still have a chance to complete homework and get a homework check as well.

The homework that was assigned was:

Page 130  #13-31 ODD

Page 131 # 43-47 ODD

Miranda's Brain Teaser: April 21

What do the following words have in common? They are in no specific order.

Bedposts, Denominate, Highways, Culture, and Elephants.

ANSWER:
Each word equals 100 when the letters are added up.
For example a = 1, b= 2, c=3.
You add up the letters and the numbers they represent.

Highways: H=8, I=9, G=7, H=8, W=23, A=1, Y=25, S=19
8+9+7+8+23+1+25+19

Thursday, April 16 Homework by Josh Adams

Today in class we went over factoring simple trinomials.
For homework, we have #1-8 (all) on page 126 and #19-26 (all), #27-43 (odd), and #51-55 (odd) on page 127.
Hope everyone who went to it enjoyed the Green and White Revue!

Brain teaser by jared for the16th

Last weekend, I went to play in the nearby park. It was real fun! I rode my new bicycle that Mom had gifted me on my birthday.On reaching the park, I saw that there were a total of 13 bicycles and tricycles. If the total number of wheels was 35, how many tricycles were there?

Answer
9

Solution: Assuming 2 wheels for each cycle, 13 cycles will have 26 wheels. But, there are 35 − 26 = 9 extra wheels. As bicycles have 2 wheels and tricycles have 3 wheels, there is 1 extra wheel per tricycle in the park. Thus, the 9 extra wheels belong to 9 tricycles.

Wednesday, April 15 Homework by Josh Adams

In class we went over grouping and factoring polynomials. We learned how to do binomials in brackets and we worked backwards from what we've been doing for the past week or so.
For homework tonight there's #11-20 (ODD ONLY) on page 120 and #30-35 (all) on page 120.

The Best Brain Teaser Ever by Ryan McCarvill

One night, an old woman, aged 71, decides she needs to pick up some groceries, but the store closes at 8 o'clock sharp. She leaves her computer on, but turns off her TV, her coffee maker, her dishwasher, her washing machine and turns out the lights. She also lets her dog outside while she is gone. She arrives at the store at 7:51. She buys milk, bread, eggs, bacon and a jug of orange juice. She realizes she does not have enough money to pay for the orange juice, so she puts it back. While in the store, she met a man who had seven wives, and each wife had ten monkeys and each monkey had thirteen goats and each goat had 27 silver bells hanging from both horns. Two goats only have one horn. The old lady leaves the store and drives home, arriving around 8:30. On her front lawn, she sees 10 dead bodies. WHAT HAPPENED????


ANSWER:
Don't even think about it---The answer will be given in class.

Homework (Friday, April 3) by Ryan McCarvill

In class today, Ms. Murphy started on multiplying polynomials using algebra tiles and teaching the FOIL (First, Outside, Inside, Last) method. No assignment was given for the weekend, but we do have questions #45-57 odd, 61-67 odd and 71-77 on page 108. Ms. Murphy will be doing a homework check for these on Monday, and make sure you finish your math project for Monday! Have a good weekend!

Homework (Thursday, April 2) by Ryan McCarvill

We spent the class working on our major math projects. Remember that they are due on Monday, April 6! No homework for today.

Brain Teaser for Apr 3 - Stephanie

There was a man with three balls and he had to cross a bridge. The
bridge could only hold the weight of him and two balls at a time and
he could only make one trip across. In the end he made it to the other
side with all three balls. How did he do it?

Homework by Ryan McCarvill

Today in class, Ms. Murphy went over a few example problems similar to ones on Assignment #5. For homework, finish the assignment and pass it in before 1st period tomorrow morning. Also, do questions 50-81 on page 33 and 1-30 on page 107. Remember to bring anything you need to work on the major math project tomorrow in class.

Brain Teaser -pm- Jillian Clow

By moving one of the following digits, make the sum correct. 62 - 63 = 1

Answer : 2^6 - 63 = 1 (In other words, 2x2x2x2x2x2, which equals 64)

Homework for Tuesday, Mar 31 - Ms. Murphy

I wanted to remind you that I will be looking for completion of the homework assigned in the text pg 102#18-39 and #40-51.

I would also like you to attempt all the problems on the assignment. I will be addressing questions related to the homework and assignment during class tomorrow.

The assignment is available on the class web site if you missed class on Friday, or misplaced the original.

If you wouldn't mind passing the message on to classmates who you think may not have recieved the e-mail or looked at the blog it would be greatly appreciated.

Thank-you and I hope you enjoy the extended weekend!

Brain Teaser for Mar 30 - Mrs. Spence

A) You are participating in a race. You overtake the second person. What position are you in?
B) If instead you overtake the last person, what position are you in?

Homework For The Weekend by Ryan McCarvill

On Friday, we checked homework from Thursday and started operations on polynomials (addition, subtraction, multiplication, division) and started practice work on page 102, questions 18-39 and 40-51. For homework, finish those questions on page 102 and finish the math assignment given out in class. Have a good weekend!

Homework (Thursday) by Ryan McCarvill

Today, Ms. Murphy covered degrees of polynomials in class. She also handed out two sheets of exponent/polynomial questions for us to work on. NOTE: Apparently, the homework assigned in the book had the wrong page number. Do questions 1-17 on page 102. Page 107 was originally assigned, but those questions are on a topic we did not cover yet. Again, do questions 1-17 on page 102! If you did not finish the two sheets given in class, those are for homework too. Also, make sure you pass in your proposal for the major project tomorrow! Remember that the project itself is due April 6.

Wednesday March 25 Homework by Ryan McCarvill

On Wednesday, Ms. Murphy went over the laws of exponents and introduced a new section about classifying and operating on polynomials. A polynomial is an expression formed by added or subtracting monomials (terms). We learned about monomials (1 term), binomials (2 terms), and trinomials (3 terms). No homework was assigned, but the proposal for the major project is due Friday!

Brainteaser for March 25 by Drew Coulson

If Susan is 10, Arabella is 20, and Jim and Neal are both 5, but Richard is 10, how much is Jennifer by the same system?

15 in a system that awards five for each syllable.

Homework by Ryan McCarvill

Another snow-day! Obviously, no new math homework, but be sure to finish the problems Ms. Murphy assigned yesterday (1-49 on page 33) in class. Also, today might be a good day to work on the proposal for the big math project. The proposal is due this Friday, the 27th, but the final project isn't due until April 6.

Homework by Ryan McCarvill

Ms. Murphy started teaching the class today, beginning with Polynomials in Chapter 3. Example questions were put up on the board, and questions 1-49 on page 33 in the textbook were assigned for homework. To make sure everyone knows how to do these problems, Ms. Murphy will choose some of the homework problems for us to pass in. This will be done in class tomorrow, so all that needs to be done tonight are the problems she assigned today.

Sarah McFadden Brainteaser for Tuesday March24th

Dave, the janitor of an apartment block, notices that the boiler pressure is rising, and will shortly explode.He phones two of the residents, tells them the news, asks them to do the same and phone just two more people, and then get out of the building.Assume that each of the residents is in, and answers the phone immediately.If each phone call takes 30 seconds, and it takes each person 90 seconds to get out of the building, how long will it take to empty all 375 apartments?

Answer= 7 Minutes
Why= In the first 30 seconds, Dave rings one other person, call him A.
In the second 30 seconds, Dave rings B, and leaves the building. A rings C.
3rd: A rings D, and leaves. B and C ring E and F.
4th: B and C ring G and H. D, E and F ring I, J, K.5th: D, E, F ring L, M, N. G, H, I, J,K ring O, P, Q, R, S.
The number of residents informed in each time period is as follows:1, 2, 3, 5, 8, ... where each number is the sum of the preceding two.The total number of people informed is:1, 3, 6, 11, 19, ...
Each number is the sum of the previous two, plus 2.Continuing this series we get:32, 53, 87, 142, 231, 375.Thus 375 people were informed after 11 periods of phone calls.
11 calls at 30 seconds each = 5.5 minutes, plus 90 seconds for the last people to exit the building gives 7 minutes.

Brain Teaser for March 23 by James Kyte

What is special about the following sequence of numbers?
8 5 4 9 1 7 6 10 3 2 0

The numbers are in alphabetical order.
(eight, five, four, nine, one, seven, six, ten, three, two, zero)

Brain teaser for March 12 by Josh Wruck

Which weighs more? (info at end)

1) All the trees cut down to make 2,000,000,000 $20 banknotes, or:
2) All the trains that pass though an end of the line train station per year

Each banknote weighs 20g, excluding ink. hidden messages, ya!

Each train carries 20 tons of goods.

On average, the station has 20 trains per day, 364 days per year (no new years day)

Exclude all variables, assume there are none (weight of trees lost by processing, trains that are loaded wrong, etc. Just do the math)

So, which weighs more? Listen in class for highlights.

Like I'd put the answer here for those who can read between the lines and saw the highlight hint.

Brain Teaser for March 12 by Spencer Montgomery

On my way to the fair, I met 7 jugglers and a bear, every juggler had 6 cats, every cat had 5 rats, every rat had 4 houses, every house had 3 mouses, every mouse had 2 louses, every louse had a spouse. How many in all are going to the fair?

Answer: Ask me

TEST TOMORROW!!

IN CLASS

-Did Brainteaser!! Thanks Josh!!

-Try word problems P. 83 #22, 23, 24, 27, 29.

-Finished assignment and passed it in.

UPCOMING

-Test Tomorrow. Band students write during lunch on Thurs.

Arithmetic Series Part 2

IN CLASS

- Talked through our Math Blog and Classwiki.
- Started talking about our final projects. Going to make posters explaining how Math is used in everyday situations. Ex. Music, sports, etc. Due late March / early April.
- Chapter 2, Lesson 6 - Arithmetic Series Part 2
- P. 82 # 10 - 15

HOMEWORK

- First page of assignment.

UPCOMING

- Test later this week.
-Cartoons due Friday by 3:30 pm.

Brainteaser By Joshua Bryan

Suppose you're in a hallway lined with 100 closed lockers.
You begin by opening every locker. Then you close every second locker. Then you go to every third locker and open it (if it's closed) or close it (if it's open). Let's call this action toggling a locker. Continue toggling every nth locker on pass number n. After 100 passes, where you toggle only locker #100, how many lockers are open?

Answer

Answer: 10 lockers are left open:
Lockers #1, 4, 9, 16, 25, 36, 49, 64, 81, and 100.
Each of these numbers are perfect squares. This problem is based on the factors of the locker number.
Each locker is toggled by each factor; for example, locker #40 is toggled on pass number 1, 2, 4, 5, 8, 10, 20, and 40. That's eight toggles: open-closed-open-closed-open-closed-open-closed.

The only way a locker could be left open is if it is toggled an odd number of times. The only numbers with an odd number of factors are the perfect
squares. Thus, the perfect squares are left open.

For example, locker #25 is toggled on pass number 1, 5, and 25 (three toggles): open-closed-open.

Cartoon and Brainteaser by Josh Adams for Monday, March 9, 2009

Good luck with my brainteaser! I've got my fingers crossed hoping that the links will work. :)

You must cut a birthday cake into exactly eight pieces, but you're only allowed to make three straight cuts, and you can't move pieces of the cake as you cut. How can you do it?
Click here for the answer. (find the problem and click Show Answer)

Click here for my cartoon.

What happened on Friday?

In class on Friday, we went over the difference between an arithmetic sequence and an arithmetic series. Then we learned how and when to use the two new formulas to calculate the sum of a series (Sn). We had to do p82 # 1-9 and # 16 - 21. The next assignment was handed out, but we don't have to pass it in on Monday. Right now, we should be able to do all but the last two questions on the first page.

 

On Monday (whether at school or at home if the weather happens to be bad), we'll be learning how to do the last two. Our homework check for Monday will be the problems on p82 (above). We'll be expected to have the first side of the assignment done to hand in on Tuesday morning before classes.

 

If you missed class on Friday and you're not sure what to do, you can check out the class website for the notes on series or you can read the book p80-81. Ask for help on Monday if you're struggling!

 

Our next test will be on Wednesday or Thursday. If you're planning to go away early for March Break, you should make arrangements to get it done before you go so you won't have as difficult a time when you get back.

Answers for the problems on the board

1. Find the first 4 terms

a) t_n = 3t_n-1 + 2; t₁ = 10
Answer: 10, 32, 98, 296

b) t_n = t_n-1 + 4n; t₁ = 3
Answer: 3, 11, 23, 39

2. Write a general term for

a) -6, -3, 2, 9, ...
Answer: t_n = n² -7

b) 32, 28, 24, ...
Answer: t_n = -4n + 36 OR t_n = t_n-1 -4 ; t1 = 32

3. If the 50th term of a sequence is 221 and the common difference is 4, find term 1.

Answer: 25

Stormstayed again!

Hello everybody! Welcome to our blog!

I thought I'd get you to try looking at the site since you are at home anyway and probably bursting for something to do! Remember - you will have to find a math cartoon and a brain teaser for easy marks, so you could spend some time looking for a good one! The trick is, yours has to be different than everyone else's. You may want to have a backup as well. Take the time to practice problems and redo assignment questions to prepare for your test on Wednesday. Tomorrow, you will get your assignments back (don't forget to pass it in before period 1 if you haven't already), and we'll do some final review.

See you in class tomorrow!

Brain Teaser for Mar 2 - 09 by Mrs. Spence

Here is my brain teaser! Good luck!

Below, 10 nine letter words have been broken into chunks of three letters. These chunks have been mixed up, no chunk is used twice and all chunks are used. Can you determine what the 10 words are?

cer ent ead rat uti spr
ful oun pro ann ope ock
nce een oat est liv ion
nou sev ion ast hou akf
bre bea ens dim bed seb

For the answer, click on this link, find the puzzle and click on "Show Answer".

Homework for Monday, Mar 2 - 09

Don't forget - we have a test on Tuesday! The only real homework for Monday is to study for the test and finish the assignment if we didn't finish it on Friday. Make sure to pass it in before first period!