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 ):

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)

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???


Answer...


$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?

Answer...

$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?



Answer...

6.09%

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

Sompong's Texbook Q&A (10,12,13)

Here is a video to help you with percents!

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.

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.

My answers:

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

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

http://www.mathgoodies.com/lessons/vol4/challenge_vol4.html

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

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.

Diana's Textbook's Question (6, 8, 15)

Since it won't let me post my video, click here.

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.

http://www.mathplayground.com/percent_shopping.html

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! :)

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.

Eli's Textbook Questions 5, 9 and 14

Question 14: 4% of 100 is the same as 8% of what number? 200 because 4 is half of 8 and 100 is half of 200.

Question 5

Question 9

Steven's Precent post -pages (3,11,7)

3. use mental math to determine each of the following.3. use mental math to determine each of the following.
A) 300% of 2000














B) 1 1/4 % of 60













C) 0.1 % of 40









7.Two hundred tickets are being sold for a school draw.
(there are two ways i did A with my strategy and with Mr. Harbeck's strategy i didn't know which one was correct so comment and tell me cause i got confused)
A) what is your chance of winning with one ticket?























B) How many tickets would you need to purchase to have 2.5 % chance of winning?
















11. The area of Canada is approximately 9 984 670 km2. The area of Manitoba is about 6 1/2 % of the nearest square kilometer?

















Here's a video that may help you!



HOPE THIS HELPED!!
sorry i took so long i couldn't get the pictures on but at the end i succeeded the only thing i think i messed up on is question # 7 but that's what you guys are for to correct me on my mistakes :) so yeah hope this helped and play MangaHigh For Sargent Park ! make sure we get first we only have tonight left and P.S i think the homework is finishing home work booklet 4.1 - 4.3 Good luck !!!

Joseph's Percent Post 6,10, 14

What is the percent of each number?
Give your answer to the nearest hundredth.

6a)
Answer- 3.25%












6b)
Answer- 150.8%









6c)250% of $76.50.
Answer- 191.25%







10. When water freezes, its volume increases by approximately 10%
a) By how much does the volume of 750mL of water increase when it freezes?75
b) What is the volume of ice created? 825mL



b)








14.4% of 100 is the same as 8% of what number? Explain how you arrived at your answer.
Answer- 8% of 200 is the same as 4% of 100 because 8% is just 4% doubled.

Karl's Percent Post 4,8,12

4. Use mental math to find the following.
a) 20% of 60.

To do that I divided 20 by 100 which equals 0.2
0.2 is 1% so I multiplied 0.2 by 60 then I got my
answer.


















b) 250% of 400

To do that I got 100% which is 400 so
I doubled that and got 800 then I divided 100 by2 and got 50% so
I did the same to 400 and got 200
I added it all up and got 250%= 1000.

c) 10 1/2% of 100

To do this I divided 10.50 by 100
and I got o.105 then that's 1% so I
multiplied that by 100 and I got 10.5

8. The original price of a jacket was $84.00 A store manager marked the price down by 25 1/5. By how much was the price reduced.

To do that I divided 100 by 4 which equals
25% and 21 at the other side then I found
!% by dividing 100 by 100 and I got 0.84
so to get half I divided 0.84 which is 0.42
so I added it all together and I got $ 21.42





















12. A manufacturerof electric hybid vehicles claims it's vehicle will travel 200 % as far as it's regualar vehicle on full tank of gas. If the regular vehicle travels an average of 550 km on a full tank, how far will the hybrid go?



To do this I got the 100% which is
550 so I doubled that to get 200%
and I got 1100 so the hybrid car
will travel 1100 km.







Here's a video about finding percent of a number.