Victoria's Final Percent Post, Cylinder & Volume Problems

A Percent is a number out of 100 or 100% . A hundred grid contains 100 squares, if you fill in 50 squares that is 50%. If you fill in 30 squares that would be 30%

4.1 Representing Percents.

To represent a percent, you can shade in squares on a hundred grid. A completely shaded hundred grid represents 100%. If the percent is greater than 100 you will have to shade more than one grid. To represent a percent between 0% and 1%, shade part of one square from the hundred grid.

4.2 Fractions, Decimals, and Percents

Fractions, decimals, and percents can be used to represent numbers in various situation.Percents can be written as fractions and as decimals.

4.3 Percent of a Number.

You can use strategies like halving, doubling, and dividing by ten to finds of numbers.

To calculate the percent of a number, write the percent as a decimal and then multiply by the number.

4.4 Combining Percents.

Percents can be put together by adding to solve questions.

To calculate the increase in a number, you can add the combined percent amount to the original number. You can multiply the original # by a single percent greater than 100.

a) V=( πxr^2 )x h
V=( 3.14 x 5cm ) x 23
V=
b) V=( πxr^2 )x h
V= ( 3.14 x 14 ) x 12
V=
c) V= (πxr^22 ) x h

Final Percent Post

What is a percent?
Percent is a number out of 100. A hundred grid contains 100 squares, so for example if you colour 50 squares that is 50%.

4.1 Representing Percents.

To represent a percent, you can use hundred grids because they are out of 100. A complete filled hundred grid represents 100%.

Here is an example of 100% in a hundreds grid.

If the percent is greater than 100 you will have to shade more than one grid. To represent a percent between 0% and 1%, shade part of one square from the hundred grid.

4.2 Fractions, Decimals, and Percents

Percents can be represented as fractions and decimals. To convert a percent to a decimal, you must divide the percent by 100. To convert a decimal into a fraction, you write the decimal as the numerator. However, the denominator depends on the place value of the decimal.

4.3 Percent of a Number.

You can use strategies like halving, doubling, and dividing by ten to finds of numbers.

When calculating the percent of a number, convert the percent to a decimal, and multiply it by the number.

4.4 Combining Percents.

Percents can be put together by adding to solve questions. To calculate the increase in a number, you can add the combined percent amount to the original number. You can multiply the original number by a single percent greater than 100.



Percent Video :

This is my final percent video.

Final Percent Post Jocelyn Leclaire

In the chapter of Percents, Mr.Harbeck has taught me many things. He taught me that Percents are basically needed in the society of ours. He taught me about taxes, he taught me math and even some things about the real world! We learned about adding percents, estimate percents and like I said finding the tax on items and many other things in this unit.

Definition : A percent is a way to express a number into a fraction of a hundred.

My scribe post




Tutorial of Percents

A thread about percents on Yahoo Answers

Final Percent Post

What is a percent?

A percent is a value out of 100, that can be expressed as a decimal, and a fraction. It is also another name for "hundredths".

- ex. 65% means 65 out of 100 or 65/100 or 0.65

Representing Percents (4.1)

To represent a percent, you can use hundred grids because they are out of 100.

- ex. 65%

Fractions, Decimals, and Percents (4.2)
Percents can be represented as fractions and decimals. To convert a percent to a decimal, you must divide the percent by 100. To convert a decimal into a fraction, you write the decimal as the numerator. However, the denominator depends on the place value of the decimal.

eg. decimal = 0.003 -> fraction = 0.003/1000 (because the 3 is in the thousandths place)
decimal = 5.98 -> fraction = 5.98/100 (because the 8 is in the hundredths place)

Now when the denominator is set, you must multiply the numerator until it becomes a whole number (or multiply it by the denominator).

eg. 0.003/1000 -> 0.003 x 1000 = 3/1000
5.98/100 -> 5.98 x 100 = 598/100

Lastly, you must simplify your fraction.

Percent of a Number (4.3)
To find a percent of a number, you can use mental techniques like halving, doubling, and dividing by ten.

When calculating the percent of a number, convert the percent to a decimal, and multiply it by the number.

ex. 12 1/2% of 50 -> 0.125 x 50 = 6.25
12 1/2% of 50 = 6.25

Combining Percents (4.4)
To solve certain problems, percents can be added together to form one percent.

ex. GST + PST = taxes
GST = 5% PST = 7%
taxes = 5% + 7%
taxes= 12%

There are two ways to calculate the increase of a number. They are:

a) Adding the combined percent value to the original number.

eg. 12% of 100 -> 0.12 x 100 = 12
12 + 100 = 112

b) Using a singel percent greater than 100, and multiplying that to the original number.

eg. 112% of 100 -> 1.12 x 100 = 112

Final Percent Post

4.1 Representing Percents : When representing percents , there's many ways you can show your percent . The easiest way is through a 100 grid . Mostly because a percent is out of 100 .

Example : 80/100 . To represent that you draw a 100 grid and shade in 80 Squares .

4.2 Fractions , Decimals & Percents : This is when you use various ways to convert Percents to fractions or decimals . There are many ways you could do this . One way you could find percent is by Multiplying or Dividing a number by 100 . To find the percent out of 100 .

Example : 30% of 100 . 30/100 = 0.3 0.3x100= 30

4.3 Percent of a number : Where you find a percent out of any number , It could be more than 100 or less that 1% .

Example : 3/4% = 0.75 . 150% of $10 = $15.00

4.4 Combining Percents : This is where you add to a Percent . As in , adding more to the additional percent . Having more than the regular percentage .

Example : Tax in Canada = 12% . If something cost $10.00 .

10.00x1.12=$11.20

Percent - is a number out of 100
- can also be represented as a decimal or a fraction

4.2 Representing Percents

You can represent a percent by shading squares on a hundred grid. A grid that is fully shaded means 100%. Use 2 or more hundred grids to show a percent larger than 100%. If you are shading less than 1%, shade a part of one square to represent it.

4.2 Fractions, Decimals, and Percents

Percent can also be written as a fraction and decimal. To change a percent into decimal, divide the percent by 100 to get the decimal. For changing into fraction, it is easier to use a decimal because it depends on how many digits there are after the decimal.

Example : 0.157 = 157/1000.

4.3 Percent of a Number

Doubling , halving, and dividing by ten are some strategies to find the percent of a number. Another way is converting the percent into a decimal then multiply it by the number.

Example : 12½ of 50 = 0.125
0.125 x 50 = 6.25

4.4 Combining Percents

Adding percents can solve problems, Example : 5% + 7% = 12%. To calculate the increase in a number, you can either:
-Add the percent amount to the original number.
Example : 12% of 100 = 0.12x100=12, 100 + 12 = 112
-Multiply the original number by a single percent greater than 100.
Example : 112% of 100 = 1.12 x 100

http://www.youtube.com/watch?v=RhFP2NeRIwA

Final Percent Post

The word percent means out of 100. Percents can be converted into decimals or fractions.

Ex. 65% - 65/100 - 0.65

Representing Percents 4.1

you can represent percents by using a hundred grid, since percents are out of 100.

Ex. this grid shows 13% since 13 squares are colored in.

Fractions, Decimals, and Percents 4.2

Percents can be converted into fractions, or decimals.

Ex. 50% - 1/2 - 0.5

Percent of a number 4.3

To calculate the percent of a number, write the percent as a decimal and then multiply by the number.

Ex. 12 1/2 % of 50 = 0.125 x 50

=6.25

Combining Percents 4.4

Combine percents by adding to solve the problems.

Ex. 5% + 7% =12%

MY PERCENT VIDEO

Final Percent Post

Percent- means out of 100, it can also be written as a decimal or fraction.

Key points of chapter 4

Representing percents- you can represent percents by using a hundred grid, use one grid if the percent is under a hundred. Or 2 girds if over a hundred, to show a decimal you can shade part of a square in the grid.

Fractions, Percents, and Decimals- decimals can be written as a percent or fraction. Decimal to percent is multiplying by a hundred, and decimal to fraction is writing the decimal over 1 then multiplying the numerator and denominator by 10 for every number after decimal.

Percent of a number-you can find percents of a number by doubling,halving, or dividing by ten.

Combining Percents- percents can be combined by adding to solve problems (5% +7%=12%). To calculate the increase in a number, you can add the combined percent to the original number (12% of 100 = 0.12 x 100=12 100 + 12 = 112). You can also multiply the original number by a single percent greater than 100. (112% of 100 = 1.12 x 100 = 112).

Karen's Final Percent Post

What is a Percent?

•number out of a hundred (50% means 50 out of a hundred, 50/100 or 0.50)

4.1 Representing Percents:

•To represent a percent you can use 100 grids. One shaded grid that has all the squares shaded in represents 100%.

•To show a percent that is larger then 100% you shade in more then on grid.

•To represent a fractional percent between 0% and 1% you shade in a part of one square.

•To represent a fractional percent greater than 1% shade squares from a hundred grid to show the whole number and part of on square from the grid to show the fraction.

4.2 Fractions, Decimals, Percents:

•Fractions, decimals and percents can be used to represent numbers in various situations.

•Percents can be written as fractions and decimals.

Example:

1/2% = 0.5% 150% = 150/100 42 3/4% = 42.75%

0.5 = 0.5/100 = .005 1.5 or 1 1/2 42.75% = 42.75/100 = 0.4275

4.3 Percent of a Number:

•You can use some mental math stratagies such as doubling, halving, doubling or dividing by ten to find percents of some numbers.

•To calculate the percent if a number write the percent as a decimal and then multiply by the number.

Example: 12 1/2% f 50 = 0.125 x 50 = 6.25 ( 12 1/2% = 12.5% = 0.125

4.4 Combining Percents:

•Percents can be combined by adding to slove problems (eg: 5% + 7% = 12%).

•To calculate the increase of a number:

-You can add the combined percent amount to the original number (eg: 12% of 100 = 0.12 x 100 = 12).

-You can multiply the original number by a single percent greater than 100 (eg: 112% of 100 = 1.12 x 100 = 112).

•Percents of percents can be used to determine amounts that result from consecutive percent increases or decreases.

Links:

A website that further explains percent

A video that explains percent of a number

Another video that explains percent word problems

Final Percent Post

What is a percent? A percent is a way to show a number out of 100. You can use the sign '%' to show percent. Examples: 50%, it is also equal to 50/100 as a fraction or 0.5 as a decimal.

In our recent unit on percent, we learned how to represent percents in different ways, convert them into decimals and fractions, how to calculate the percent of a number, and how to combine percents.

Representing Percents:
- To represent a percent, you can shade squares on a grid of 100 squares called a hundred grid. One completely shaded grid represents 100%.



100%

- To represent a percent greater than 100%, shade more than one grid.





-To represent a fractional percent between 0% and 1%, shade part of one square.



- To represent a fractional percent greater than 1%, shade squares from a hundred grid to show the whole number and part of one square from the grid to show the fraction.





Fractions, Decimals, Percents:
- Fractions, decimals, and percents can be used to represent numbers in various situations.

- Percents can be written as fractions and as decimals.





Percent of a Number:
- You can use mental math strategies such as halving, doubling, and dividing by ten to find the percents of some numbers.

- To calculate the percent of a number, write the percent as a decimal and then multiply by the number.





Combining Percents:
- Percents can be combined by adding to solve problems. 5% + 7% = 12% .

- To calculate the increase in a number,

• You can add the combined percent to the original number. 12% of 100 = 0.12 x 100 = 12
• You can multiply the original number by a single percent greater than 100. 112% of 100 = 1.12 x 100 = 112

- Percents of percents can be used to determine amounts that result from consecutive percent increases or decreases.

Here is my video about percents.



Here is a link to my percent scribe post:

http://spmath81610.blogspot.com/search/label/Olivia816

Here is a link that goes to a website that has more information on percents.:
http://www.math.com/school/subject1/lessons/S1U1L7GL.html

Final Percent Post

Definition of percent:
any number out of 100,that can be represented as a fraction and a decimal.

Key Points of Chapter 4

4.1
When showing a percent greater than 100%, use more than 1 grid.
When showing a percent less than 1%, but more than 0%, use only one grid.

4.2
Percents can be shown as a decimal and fraction.
50% = 1/2 and 0.5

4.3
To calculate a percent of a number,write it as a decimal and multiply it.
15 1/2% of 50= 0.125x50
= 6.25

4.4
To combine a percent, put them,or add them together.
ex.1% + 2% = 3%
To found out the increase in a number, add the combined percent to the original number.
5% + 7% = 12%

Click here for my video!

Jayvee's Final Percent Post

Percent - is a number out of 100
- can also be represented as a decimal or a fraction

Representing Percents

You can represent a percent by shading squares on a hundred grid. A grid that is fully shaded means 100%. Use 2 or more hundred grids to show a percent larger than 100%. If you are shading less than 1%, shade a part of one square to represent it.

Fractions, Decimals, and Percents

Percent can also be written as a fraction and decimal. To change a percent into decimal, divide the percent by 100 to get the decimal. For changing into fraction, it is easier to use a decimal because it depends on how many digits there are after the decimal.

Example : 0.157 = 157/1000.

Percent of a Number

Halving , doubling, and dividing by ten are some strategies to find the percent of a number. Another way is converting the percent into a decimal then multiply it by the number.

Example : 12½ of 50 = 0.125
0.125 x 50 = 6.25

Combining Percents

Adding percents can solve problems, Example : 5% + 7% = 12%. To calculate the increase in a number, you can either:
-Add the percent amount to the original number.
Example : 12% of 100 = 0.12x100=12, 100 + 12 = 112
-Multiply the original number by a single percent greater than 100.
Example : 112% of 100 = 1.12 x 100

Final Percent Post

What is a percent?

-Means out of 100

-Another name for hundreths

-Ex. 76% means 76 out of 100

4.1 Representing Percents

-You can represent a percent by shading in a hundred grid

-You can also use more than one grid to represent a percent larger than 100

-If representing a fractional percent, you can shade in a part of one square

Ex.

4.2 Fractions, Decimals, and Percents

-Fractions, decimals, and percents can be used to represent numbers in various situations

-Percents can also be written as fractions and decimals

Ex. 50% = 0.5 = ½

4.3 Percent of a Number

-To find percents of some numbers, you can use mental math strategies such as halving, doubling and dividing by ten

-Write a percent as a decimal and multiply it by the number to find the percent of a number

Ex. 12 ½ % of 50 = 0.125 x 50 = 6.25

4.4 Combining Percents

-You can add some percents in order to solve a problem

-To find the increase of a number,

-You can add the combined percent amount to the original amount

Ex. 19% of 100 = 0.19 x 100 = 19

100 + 19 = 119

- You can multiply the original number by a single percent greater than 100

Ex. 119% of 100 = 1.19 x 100 = 119

Click here to see my percent scribe post.

You can also visit this website to learn more about percents

This is my percent video:

Paulo's Percent Review Video

A percent means out of 100.
Ex: 50% means 50/100, 50 out of 100, or 0.50

4.1Representing Percent

Representing percents means showing a percent as a picture in a hundred grid.
Ex. 50% on a hundred, 50 squares are shaded in a hundred grid so it would be 50%.

4.2 Fraction,Decimal,and Percents

Fractions,decimals, and percents can be used to represent numbers in various situations
-Percents can be written as fractions and as decimals.
Ex. 1/2%=0.50%, 0.5/1000=o.005, 150%=150/100=1.5 or 1 1/2

4.3 Percent of a number

-You can use mental math strategies such as halving,doubling, and dividing by ten to find the percents of some numbers.
-To calculate the percent of a number,write the percent as a decimal and then multiply by the number.
Ex. 12 1/2% of 50=0.125 x 50=6.25 ( 12 1/2 %=12.5%=0.125)

4.4 Combining Percent

-Percent can be combined by adding to solve problems. 5% + 7%=12%
-To calculate the increase in a number.
Ex. 12% of 100= 0.12 x 100=12,100 + 12=112
-You can multiply the original number by a single percent greater than 100
Ex. 112% of 100=112 x 100 = 112

Percent of percents can be used to determine amounts that result from consecutive increases or decreases.



This is my percent preview video:

Lizelle's Percent Scribe.

For this scribe, I chose question #3, #8, and #12.

For #3 I got:
a) 6000
b) 6.15
c) 0.04

For #8 I got:
$21.42

For #12 I got
1110 kilometres on a full tank.

Cylinder & Volume Post.

Height = 10cm
Diameter = 20.3cm

r= d/2 r = 20.3 / 2
r = 10.5cm

v = π x r x r x h
v = 3.14 x 10.15 x 10.15
v = 323.49cm2
v = 323.49 x 10
v = 3234.9cm3

Height = 10m
Diameter = 0.8 (inside) and 1 (outside)

Inside -
R = d/2
R = 0.8/2
R = 0.4

V = π x r x r x h
V = 3.14 x 0.4 x 0.4 x h
V = 0.5 x 10
V = 5m

Outside -
R = d/2
R = 1/2
R = 0.5

V = π x r x r x h
V = 3.14 x 0.5 x 0.5 x h
V = 0.78 x 10
V = 7.8m

Final Percent Post

In this chapter/unit I have learned many things about percent. Such as that you can add percents together, you can divide percents, that you can estimate percents, finding taxes on items and many more things. Percents can be really handy in life, especially finding the taxes on an item.

Definition : A percent is a way to express a number into a fraction of a hundred.

My scribe post:



A thread that many people explain percents.

Lizelle's Percent Review Video

A percent is a way to express something in a fraction of a percent. You can find the percentage of something very easily. The easiest way to find a percent is to find the "silver bullet." Percent's can be very useful in our life, it's also very helpful if we need to find out the fraction of something or a number.

Final Percent Post

Percent
a percent means out of 100
a percent can be represented as a fraction, decimal and in a hundred grid

Key Points of Chapter 4
4.1
When representing a percent greater than 100%, use more than 1 grid.
When representing a percent less than 1%, but more than zero, shade a part of one square.
4.2
Percents can be represented as a fraction, and a decimal.
1/2 = 50% = 0.50
4.3
To calculate a percent of a number, write the percent as a decimal then multiply the number
12 1/2% of 50= 0.125x50
= 6.25
4.4
To combine a percent, add them together.
To found out the increase in a number, add the combined percent to the original number.
5% + 7%(taxes) 12%

My percent video:


My Percent Scribe

This youtube channel can help you with percents and other math topics.

Final Percent Post

Percent means out of a hundred. It's another name for hundredths. They can be represented as a fraction or a decimal.
This chapter, we did percents. We have learned a lot from, showing percents on a hundred grid(s), converting them into decimals and fractions, combining percents and a percent of a number.

We first learned about representing percents. You can have percents from less than 0 to more than 100 on a grid . The percents involve fractions as well.
An example of a number on a hundred grid, containing more than 100 is:

An example of a number on a hundred grid, containing less than 100 is:


The next thing we learned about fractions were converting them into fractions and decimals.
Example: convert the following into a decimal and percents .
a) 3/40 = 0.075
the numerator divided by the denominator and you get the decimal .
b) 0.075 x 100 = 7.5


4.3 was finding a percent of a number. I like to use the ratio grid to find the percent .
example: whatever you do one side, you do to the other side.


The last thing we learned about percents were combining them . I thought this was really easy.

Final Percent Post

What is a percent? A percent is out of a hundred. It is also another way of saying hundredths.

We recently learned about percents and did many things with them. We learned how to represent them in different ways, change them into fractions, decimals, and percents, how to find a percent of a number and how to combine percents.

Representing Percents:
You can use hundred grids to represent percents. You can also use more than one grid and shade part of a square.
Example: If you had to represent 180%, you would shade in one whole one hundred grid and 80 squares of another.

Fractions, Decimals, Percents:
You can use fractions and decimals to represent percents.
Example: 1/2 = 0.5 or 50%.

Percent of a Number:
To find the percent of a number, you can use some simple mental math strategies such as halving, doubling and dividing. You can also take the number and change it to a decimal then multiply that by the other number given.
Example: If you were finding 160% of $53.27...
1.60 x 53.27 = $85. 23

Combining Percents:
Percents can be combined by adding to help you solve problems. You can also use other strategies such as multiplying.
Example:
Ravi purchased 3 DVDs for $19.99 each.
Find the total cost for the DVDs including
5% GST and 6% PST.

$19.99 x 3 = $59.97
$59.97 x 1.11 = $66.5667
= $ 66.57

Here is my math video answering the four questions Mr. Harbeck gave us.



This is my percent post.
Here is a video that I hope will help you further understand percents.