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

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

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

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

    

Liam's Scribe Post (Percent)

150 - 151

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

a) Find the population after the second year.

100 divided by 10 equals 10
Then add 10 to 100 it becomes to 110.

First year: 110

In the second year
110x 1.20 = 132
The population for the second year is 132.
b) Explain why the percent wasn't 30% increase in two years.

Because 1o% is the increased in the first year and 20% is the increase in the second year.

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?

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

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

Priya's Percent Scribe Post

Page's 148-151

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.

This is the calculation I did to figure out the final price with taxes included:

4.99 x 2 = 9.98

9.98 + 3.99 + 19.99 = 33.96

33.96 x 0.12 ( add the GST and PST- which makes 0.12 ) = 4.07 ( tax money )

4.07 + 33.96 = $38.03 ( final price, taxes included too.)

13.) A ski jacket has been marked down on three occasions, first 20% off, then 25% off the new price, and finally 50% off the previous price. What is the overall percent saved?

This is the calculation I did to find the overall percent saved:

For example, if the jacket was $100,

100 x 20% ( 0.20 ) = 20

100 - 20 = 80

80 x 25% ( 0.25) = 20

80 - 20 = 60

60 x 50% ( 0.50) = 30

60 - 30 = $30 ( final price )

$100 - $30 = $70

$70 divided by 100 = 0.7 ( 70%) ( savings )

12.) a.) What is 115% of 230?

115% ( 1.15 ) x 230 = 264.50