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## Friday, December 16, 2011

### Kenzie's percent post

13.
70%
7. A herd of 100 Caribou was moved to a new location. The population increased by 10% the first year and the increased 20% the second year.
a)Find the population after the second year.
The population was 132 in the second year.
b)The increase was not 30% because the 20% increase in the second year was based on a new population after the first increase.
5)Ravi purchased 3 dvds for 19.99 each
Find the total cost for the DVDs including 5% GST 6% PST

66.60
sorry if any of this is wrong ):

### hannah's scribe post

Textbook page 148-149
5.Ravi purchased 3 dvds for 19.99 each
Find the totl cost for thr DVDs including 5% GST 6% PST
19.99 x 3 = \$59.97 0.11 x 59.97 = \$6.60 + 59.97=\$66.60

10.what is the total cost for 4 tires that sell for \$85 each, plus 5% GST and 1.5% envoirnmental tax?
4 x 85 = \$340 0.5 x 340 = \$170 o.15 x 340 = \$51 340+170+51= 561

(sorry if i'm wrong)

### Masynne's Percent Post

7. A herd of 100 Caribou was moved to a new location. The population increased by 10% the first year and the increased 20% the second year.

a)Find the population after the second year.
The population was 132 in the second year.

b)The increase was not 30% because the 20% increase in the second year was based on a new population after the first increase.

13. A Ski jacket has been marked down on three occasions , first20% off, then 25% off the previous price. What is the overall percent saved?

The overall percent saved is 70%.

9.Arjay was thinking of buying a car worth \$23 000, but delayed purchasing the car for a year. During the year, the cost of the car increased by 3.2%.

a)What was the price of the car when Arjay purchased it ?
The price was \$23 736 when Arjay purchased it.

b)What was the total cost of the car including 5% GST and 5% PST?
The total cost is \$26 109.60

### Sydney Tuna Mazur: Percent post

7.
a) The population after the second year is 132 caribou.
b) It is 20% instead of 30 percent because it started with 10% on the first year, and then added another 10% the second making it 20%.

8. (chp. 1-4review)

a) Pasta supreme is the better buy because the amount is bigger than the super choice for only a couple cents more.
b) \$0.14 per g for super choice, and \$0.10 per g for pasta supreme
c) Pasta supreme is the better because it is \$0.04 less per g.
d) estimating unit costs is useful because it helps you make better choices and save money.

13.

70%

(I apologize if there is a lot wrong, but I tried my best please don't be too mad at me)

## Thursday, December 15, 2011

### Kim's Textbook Question

Page 149
Questions no# 9,10,11

9. Arjay was thinking of buying a car worth \$23,000, but delayed purchasing the car for a year. During that year, the cost of the car increased by 3.2%

a) What was the price of the car when Arjay purchased it?

b) What was the total cost of the car including 5% GST and 5% PST???

\$23,736 x 1.10 = \$26,109.60

10.What is the total cost for four tires that sell for \$85 each, plus 5% GST
and 1.5 environment tax?

\$85 x 4 = \$340
add 5% GST and a 1.5% environment tax

\$340 x 1.05 = \$357

Then...

\$357 x 1.015 = \$362.35

11.A student is awarded a \$1,000 scholarship and place it in an account that
pays 3% simple interest per year.

a) What is the total value of the scholarship amount at the end of the second year?

b) What is the single percent increase in value of the scholarship after two years?

6.09%

## Wednesday, December 14, 2011

Texbook Questions
Question 4(Pg 150)
How many Hundred Grids are needed to show
each of the following percents.
a)101%
To do 101% on a hundred grid you would need 2 grids
One grid is for the 100 the other is for the 1.
b)589%
You would need 6 grids to do 589 percent.
5 grids=500. Grid 6=89%

Question 5(Pg 150)
What percent does each diagram represent
a)7/10 7 out of 10 rectangles are shaded in.
b)3/5 3 out of 5 rectangles are shaded in.
c)1/4 1 out of 4 rectangles are coloured.

Question 7
Caribou Question

110 divide 10=11
100 divide 10=10
11x2=22
10x2=20

### Terence's Textbook Questions 6,7, and 4

Question 6
A store discounted items by 50% off the original price one week. The following week an additional 10% was taken off the already reduced price. The regular price of a CD player was \$85.00. What is the reduced price in the second week?

50% off \$85.00 85.00 Divided By 2=42.5
42.50 Divided By 10=4.25
42.50-4.25=38.25

Question 7
There's 100 Caribou, 1 day the herd increases by 10% and another day the herd increases by 10% again what is the, herd number?

100+10=120
120+10=130
I added 10 by 100 which =120 and I did it again which =130

Question 4
Chris purchased the following items:
• 2 binders at \$4.99 each
• 1 math set for \$3.99
• 1 backpack for \$19.99

Find the total cost including 5% GST and 7% PST.

4.99x2=9.98
9.98+3.99=13.97
13.97+19.99=33.96
0.12x33.96=4.08
4.08+33.96=38.04

### Dom's Percent Textbook page 149 (4,5,6)

Question 4.

Chris Purchased the following items:
- 2 binders at 4.99\$ each
- 1 math set for 3.99\$
- a backpack for 19.99\$

Find the total cost including 5% GST and 7% PST.

4.99\$ x 2= \$ 9.98 9.98+3.99+19.99= 33.96
5+7=12 12/100= 0.12 0.12x 33.96= 4.08
4.8+33.96= 38.04

Question 5.

Ravi purchased 3 DvD's for 19.99 each. Find the total cost for the DvD's including 5% GST and 6% PST

3x19.99=59.97

5+6= 11 11/100= 0.11
0.11x59.97=\$6.60 6.60+59.97= \$66.57

Question 6.

A store discounted items by 50% off theoriginal price one week. The followingweek an additional 10% was taken off thealready reduced price. The regular priceof a CD player was \$85.00. What is thereduced price in the second week?

50/100=0.5 0.5x 85.00= 42.5 10/100=0.1
85.00/2= 42.5 0.1x 42.50= 4.25

42.5-4.25=
38.25

### Patricia's Textbook Questions 4,7,4

Page 148

4) Chris purchased the following items:

• 2 binders for \$4.99 each

• 1 math set for \$3.99

• a backpack for \$19.99

Find the total cost including 5% GST and 7% PST.

1- 4.99x2+3.99+19.99=33.96

2- 0.12x33.96=4.08

3- 4.08+33.96=38.04

Page 149

7) A herd of 100 caribou was moved to a new location. The population increased by 10% the first year and then increased by 20% the second year.

a) Find the population after the second year.

1- o.10x100=10

2-100+10=110

3-0.20x110=22

4-110+22=132 caribou

b) Explain why there was not a 30% increase in population over the two years.

Because increase is not 30%, the 20% increase in the second year and the 10% increase in the first year.

Page 150

4) How many hundred grids are needed to show each of the following percents?

a) 101% b) 589% c)1450%

For a: you will need 2 hundred grids.

For b: you will need 6 hundred grids.

For c: you will need 15 hundred grids.

## Monday, December 12, 2011

### Anita's HWB Post

4) Chris purchased the following items:
• 2 binders for 4.99 each (about \$10.00)
• 1 math set for 3.99
• a backpack for 16.99
Find the total cost including 5% GST and 7% PST.

Step 1: Add all the costs of the supplies to get a sum of \$24.98.
Step 2: Multiply the sum by 0.12. The reason you multiply it by 0.12 is because it is the result of adding the GST and PST together.

Step 3: Add the taxes to the total.

Chapter Review

8) The coach asked the team to give 110%

a) What is this value as a fraction and decimal number?
The value of this as a fraction is a 110 and the decimal number is 1.10
100

b) What does this statement mean to you?
I think it means that the coach wanted the team to do their best.

9) Copy and complete the following table. The first row is done for you.

Please tell me if I made any mistakes! I am not sure about a lot of the answers in the fractions column, so correct me if I'm wrong! (:

This blog doesn't let me add colour to my post so I'm sorry about that.

### Ashley's Textbook Questions.

3)Q. Kyle says that a population increase of 15% one year followed by an increase of 10% the next year is the same population increase of 25% over two years. Is Kyle correct? Explain.

3)A. Kyle is wrong because if you add 10+15% you get 115 and if you add 10% to that you get 126. This doesn't add up to 25%.

7)Q. A herd of 100 caribou was moved to a new location. The population increased by 10% the fist year and then increased by 20% the second year. Find the population after the second year. Explain why there was not 30% increase in population over two years.

7)A. 100+10% (First Year) =110
110+20% (second Year) =132
B. Because it wasn't 30% for 2 years. It was 2 different numbers for 2 different years.

9)Q. Arjay was thinking of buying a car worth \$23 000, but delayed purchasing the car for a year. During that year, the cost of the car increased by 3.2%. What was the price of the car when Arjay purchased it? What was the total cost of the car including 5% GST and 5% PST?

9)A. \$23 000+3.2% = \$23 736 (CAR PRICE)

CAR \$23.736 5% GST= 1 186.80 7% PST=\$1 661.52

TOTAL TAX= \$ 2 848.32
TOTAL PRICE=\$ 26 584.32

### Anita's We Day Post

On Wednesday, November 23rd, I had one of the best experiences of my life! We Day was such an inspiring, fun time that I didn't want it to end! Once you walk through the doors of the Mts Center all you can see are thousands of students and adults everywhere. There were a lot of different booths advertising different things. There was one stand promoting the Vow of Silence campaign, even a booth advertising Boston PIzza! There was one game where you can win Boston Pizza coupon, and I won \$5.00 off my next pizza.. when you purchase something over 25 dollars :(
The Mts Center is exceptionally big, and it was practically flooded with excited children and adults! When we did the 'We Day dance', everyone was up and dancing, and it was really cool to see everyone jumping at the same time. It was very strange when Michel Chikwanine was on stage and all 16 000 of us in the Mts Center were perfectly quiet. It was surreal when I saw Hedley and Down With Webster perform, because they are really fantastic live in concert!
The only thing I didn't like about We Day was how filled the Mts Center was with people, and it took forever to buy lunch because people were constantly cutting each other in line and there were too few workers to serve everyone in line! I even missed some of the performances because I was stuck in line! And I didn't get to see any of the performers and speakers so they could give me an autograph.
Overall, it was a excellent day. I got to see Spencer West, Al Gore, the Craig and Mark Kielburger, and a whole lot of other magnificent people that we talk about in class! I definitely want to attend We Day again. It was a really good day! (:

### Scribe post for pages 135-137 Questions (1,3,11)

1. Kaitlyn and Jordan are converting 0.003 to a percent.
Who is correct? Show how you know.
Kaitlyn: Jordan:
0.003 = 3% 0.003 = 0.3%

Jordan is correct he is correct because you have to convert a decimal to a percent. You do that by multiplying by 100.

3. Teammates Mark and Jonas are discussing the outcome of a game.
Mark says their team scored 500% as many goals as the other
team and Jonas says they scored ﬁ ve times as many goals as the
other team. Can they both be correct? Explain how you know.

Yes they can both be correct. They can both be correct because 100% multiplied 5 times equals 500%. So in one each 5 represents 100%.

11. Express the shaded portion of each diagram
as a fraction, a decimal, and a percent.

a) Fraction: 17 I couldn't get a fraction line in the middle so yeah
25

Decimal:0.68
Percent: 68%

b) Fraction: 9
24
0.375
Decimal:Percent: 37.5%

Here is a video

Here is a worksheet you can practice on

### Oudorn's Textbook Questions(4,6 and 13)

Question 4:
Chris purchased the following items:
• 2 binders at \$4.99 each
• 1 math set for \$3.99
• a backpack for \$19.99
Find the total cost including 5% GST
and 7% PST.

4.99+4.99+3.99+19.99=\$33.96
0.12x33.96=\$4.08
4.08+33.96=\$38.04

Question 6:
A store discounted items by 50% off the
original price one week. The following
week an additional 10% was taken off the
already reduced price. The regular price
of a CD player was \$85.00. What is the
reduced price in the second week?

85.00÷2=\$42.50
42.50÷10=\$4.25
42.50-4.25=\$38.25

Question 13:
What is the total cost for four tires that
sell for \$85 each, plus 5% GST and a
1.5% environment tax?

85.00x4=\$340
0.065x340=\$22.10
22.10+340=\$362.10

## Sunday, December 11, 2011

### Michael's textbook questions 5,6, and 7

Question 5 (page 148)
Ravi purchased 3 DVD's for 19.99 each. Find the total cost for the DVD's include 5% GST and 6% PST.

3 dvd's= 19.99 x 3 =59.97
tax = 11% 59.97 x 0.11= 6.6
11% = 6.6
59.97+6.6= \$67.6 3 DVD's plus tax is total to \$67.6

Question 6
A store discounted items by 50% off the original price one week. The following week an additional 10% was taken off the already reduced price. The regular price of a CD player was \$85.00. What is the reduced price in the second week?

First week
50% off of \$85.oo is 85.00 x 0.50 =\$42.5
second week
10% off of \$42.5 42.5 x 0.10= 4.25 42.5 - 4.25 = \$ 38.25

Question 5 (chapter review)
2/5% of325 = 1.3
15 1/4% of 950= 144.88
175% of 125.50- 219.63

### Nikko Percent post

my picture wont Move!! this is question 8.
Question 5
3 Dvd's for \$19.99
3 x \$19.99 =59.76 59.76 x 0.11=6.6 59.76+6.6=\$66.36
Question 8
Copy and complete the following table. Use 5% GST and the percent of PST
applicable to where you live.

## Wednesday, December 7, 2011

### Suzzene's scribe post

*Taxes not included.

1st Question:
Store A:
Skates = \$200
50% Off.

Store B:
Skates = \$200
Day 1- 30% Off.
Day 2- 20% Off.

Finding the total price for Store A:
For finding how much the sale price is for Store A, I would first find the discount. I'd find the answer by doing the decimal way.

50/100 = 0.50
0.50 x 200= 100

Then, I would subtract the original price to the discount.
200 - 100= \$100

Therefore, in Store A, you would have to pay \$100.

Finding the total price for Store B:
Like in Store A, I would first find the discount.

30/100= 0.30
0.30 x 200= 60

Then subtract it with the Original Price again.
200-60= \$140

On the first day, you'd get the skates for \$140 dollars. If you go the second day, to find how much it is, you have to do the whole process all over again except, you have a new 100%. Instead of 200, it will be 140.

20/100= 0.20
0.20 x 140= 28

Lastly, subtract once more.
140-28= \$112

In the end, it shows that you can save more, (\$12) if you buy at Store A instead of Store B.

2nd Question:
Store C:
Boots = \$270
40% Off.

Store D:
Boots = \$270
Day 1- 30% Off.
Day 2- 10% Off.

Finding the total price for Store C:
Re-do the whole process done in the 1st question.

As a reminder, first, you must find the discount.
40/100= 0.40
0.40 x 270= \$108

Then, subtract original price with discount.
270-108= \$162.

Therefore, if you bought in Store C, you would get the boots for \$162.

Finding the total price for Store D:
Find the discount first.
30/100= 0.3
0.3 x 270= \$81

Subtract Original Price with discount.
270 - 81= \$189

If you bought the boots on the first day, you would buy it for \$189. If you bought it on the second day...

Finding the discount:
10/100= 0.10
0.10 x 189= \$18.90

Subtracting the discount from the Day 1 price, it would be \$170.10
189- 18.90= \$170.10

Therefore, you would save more money if you bought it at Store C instead of Store D.

If you are kind of confused, here's a video that may help you.:

Here is also a game about discounts and such.

Good Luck and Have fun!

P.S., due to Rose's suggestion, I decided to put the homework.

Remember, don't forget to do pages 148-151 in mytextbook.ca, or at least, some of them! :)

## Monday, December 5, 2011

### Jay Jay's Percent Post :)

ipod is \$285 with a 5% discount

5/100=0.05x285=14.25

285-14.25=270.75

Jeans \$75 15% Discount

Discount: 15/100=0.15x75=11.25

Sale Price: 75-11.25=63.75

Method:
I divide the discount by 100 then multiply that number by the original price to find the discount amount. I subtract the discount amount from the original amount to get the discounted price.