Showing posts with label Percent. Show all posts
Showing posts with label Percent. Show all posts

Monday, January 31, 2011

Jocelyn Leclaire Percent Video Post

A percent can be very useful in our life today. If we didn't have a percents in our life, our lives and business would be just horrible! It would be confusing, and well just plain out dufficult. One of the ways and the most easiest way to figure out a percent is to figure out the "silver bullet" as Mr.Harbeck calls it of a number.


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

Sunday, January 16, 2011

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:

Saturday, January 15, 2011

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.

Sunday, December 5, 2010

Melanie's Percent Scribe Post

Page 135 - 136 (Questions 2, 4, 5, 8 & 10)


















Please point out any errors I have made and remember to comment on all the blogs.
P.s. sorry if any of the pictures are hard to see.

Thursday, December 2, 2010

Errol Sinsay's Scribe Post

For homework we had to find the decimal, fraction, or percent. Here was one:














Here is what I got















The other one we had to do was:













Here is what I got:














Here is a video that may help you if you are having trouble
Percent:

-Means out of 100
-Another name for hundredths
-65% means 65 out of 100 or 65/100 or 0.65


Fractional Percent:

-A percent that includes a portion of a percent such as 7 3/8% or 4.5%

Page 125 Show you Know

A) 248%=
B) o.4%=
C) 74.8%=


Page 127 Show you Know


A)




B)


C)