Showing posts with label percent. Show all posts
Showing posts with label percent. Show all posts

Thursday, December 22, 2011

Alex's Percentage post






7a) The population after the second year is 122 because the first year has 110 and 10% of that is 122
7b) because it only goes up by 30% each year







9a) it cost $23736 when arjay bought it

9b) it will cost $26109.6 with the gst and pst

Wednesday, December 21, 2011

Jaydin's Scribe Post

Page 149, Question 7
A herd of 100 caribou was moved to a new location. The population increased be 10% the first year, and increased be 20% the second year.

A)Find the population after the second year








B) Explain why the percent wasn't 30% increase in two years
There wasn't a 30% increase because it goes up by 10% each year
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Page 148, Question 4
Chris purchased the following items
2 binders at $4.99 each
1 math set for $3.99
a backpack for $19.99

4.99x2= $9.98
9.98+3.99+19.99=$33.96
33.96x1.12=$38.0352 then you round it so it equals to $38.04
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Use hundred grids to show
a)0.4% b)12% c)115%



Jason's Percentage Post

A herd of 100 caribou was moved to a new location. The population increased be 10% the first year, and increased be 20% the second year.

a) Find the population after the second year
















b) Explain why the percent wasn't 30% increase in two years


There wasn't a 30% increase because you are finding 10% the first year and then 20% of 100 + 10% . ( 20% of 110 )



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?A.)

The Car price went up by $690 so it is now $20,690.20B.)With tax it is worth 26,059.22


Monday, December 19, 2011

Nathan's Percents Post

Percents 3
1)The commission for the sale of a house was 6 ----- %. If the house sold for 4
$345 000, how much was the commission? Show your thinking.
3
Answer: 6 ------% of $345 000 =
4
6.75 ÷100 0.0675
------ -------- 0.0675 x $345 000= $23 287.50
1 ÷100 0.01

2)What is the percent of each number? Give your answer to the nearest hundredth.
245
Answer: ------ = 2.45 x 356.80= $874.16
100













































Friday, December 16, 2011

Joanna's Scribepost

Questions from page 150-151


a) 79.1%

b)223%


c)0.8%




note:to change a percent to a decimal, divide the percent by a hundred.

a) The value of 110% in a decimal form is 1.1 and in a fraction form is 1 1/10.
b)this statement means that the coach is asking his team to give more than their best.


a) 115% of 230=264.5



b)80 3/4% of 50=40.4


c)500% of 0.02=0.1



d)1/10% of 800=0.8


e)63 4/5% of 12 000=7656



f)0.05% of 1 000 000=500





    




Wednesday, December 14, 2011

Cyerra's Scribe Post

Question 5, Page 148










$19.99 multiplied by 3 = 59.97


5% + 6% = 12%

1 + 12% = 1.12

59.97 multiplied by 1.12 = 67.1664 (66.57)



Question 7, Page 149













a)



First Year:


Divide 100 by 10 = 10.

10 new Caribou.

10 + 100 = 110



Second Year:


Divide 110 by 10 = 11

Mulitple 11 by 2 = 22
110 + 22 = 132 Caribou



b)



There wasn't a 30% increase because the second year, it is 20% off of the 10% in the first year (20% increase of the 110 caribou)




Question 6, Page 148 $38.25









Week 1:


$85.00 divided by 2 = 42.50



Week 2:


42.50 divided by 10 = 4.25


$42.50 - $4.25 = $38.25

Ashton's scribe (textbook pages 148-151)

For this scribe we were supposed to pick any four questions from the textbook and show your work my three questions are 4, 9 , and 12 a and b. 4 my first step was highlighting or writing down the information i know


here is what i did for questions 4,9,&12





video 9






video 12




Monday, December 12, 2011

Peter's Scribepost


Page 149 question 13




Let's say that the ski jacket cost $100 so

Then there is another 25% discount

and lastly a 50% discount




70% is the overall discount from original price.

Page 149 question 14



Again pretending that the cost of the DVD player is $100.



I added 100 by 35 cause it says "cost more than"





They still gain 8%.

Chapter Review Question 9

Sunday, December 11, 2011

Marlo's Scribe Post.





Pg 150 number 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. b) Explain why there was not a 30% increase in population over the two years.
B.) There wasn't a 30% increase because on the second one it was based on the first one with the 10% increase.
Copy and complete the following table. Use 5% GST and the percent of PST applicable to where you live.
Pg 149 number 8.
Pg 149 Number 9
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?

Danilyn's Scribe Post


Page 148. Question 4.
(1) binder= $4.99******
(2) binders= $9.98 ($4.99 multiplied by 2)
(1) math set= $3.99
(1) backpack= $19.99
total= $33.96
5% (GST) + 7% (PST) =
12%



(adding on 100%= 112%)
112÷100= 1.12%(you could rotate it sideways to get the fraction version, but for this scribe I prefer using decimal sentences) Percentage multiplied by total 1.12% multiplied by $33.96= 38.0352 (round it up)
38.0352 = $38.04



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Page 149. Ques
tion 7.

Calculate 10% of 100 to find the first year (100%÷10=10%)
What you do to the o
ne side you always have to do to the other side, if you are dividing the
100(%) with 10, you would have to divide 100(caribou) by 10 also. Since it said increasing, you would have to add both of your tens (percentage and caribou) to your totals (100 on both percentage and caribou)

So far: 110 caribou = 110% (First Year)


Next, calculate 20% of your new whole (new whole (whole= 100%))= first year. first year= 110 caribou). This is another way to sh
ow my explanation, yet this way might be more space taking on some explanations****


100 % = 110
then divide by 10
10% = 11
then multiply by 2
20% = 22


Now, we move onto a)


To find the population after the second year (meaning, the total caribou you have calculated on both first and second year) You would need to add the first year total (which was 110 caribou) to the 20% (which was 22 caribou) increase we had on the
second year.

110 + 22 =
132 After the second year, the total population for the caribou is now 132.

Moving onto
b)
To explain why there wasn't a 30% increase over those 2 years is because both of the years don't have the same whole. During the second year, we have switched the whole(the whole=100%) (100- during first year) into (110- after first
year).



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Page 150. Question 7.



a) 0.4% (decimal= explosion) =



b) 12% =



c) 115% (more than "100") =
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Here is a video on finding percents.
Anyone kind enough to give me a link to a game? Please?


Riley`s scribe post





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


a) 101%
2

b) 589%







6
c) 1450%










15


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














8. copy and complete the following table. Use 5% GST and the percent of PST applicable to where you live.













Joy's Scribe Post

Page 149
9. 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.


The population after two years is 132 caribou.
b.) Explain why there was not a 30% increase in population over the two years.

The increase is not 30% because the 20% increase in the second year is based on the new population after 10% increase in the first year.

Chapter Review
4. How many hundred grids are needed to show each of the following percents?
101%

589%

1450

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