Justin Sunga's Big books of intergers post

Grade 7 Integer Review
Chapter 1

(+4) + (-2) = +2
Positive (4) and Negative (2) = positive 2
have 4 and owe 2 = have 2
Standard Form: 4 - 2 = -2
Making zero pairs:
-16 = +16, -5 = + 5, +6 = -6, -2 = +2,
-10 = +10, +3 = -3, +11 = -11, -9 = +9

Chapter 2 Multiplying Intergers :

Sign Rule:
Even: When you have an even amount of Negative factors, the product is Positive.
Odd: When you have odd amount of Negative factors, the product is Negative.

(+2)x(-3)=
2 groups of (-3)= -6
- - -
- - -
(+2)x(+3)=
2 groups of (+3)= +6
+++
+++
(-2)x(+3)=
remove 2 groups of (+3)= -6
- - -
- - -
(-2)x(-3)=
remove 2 groups of (-3)= +6
+++
+++

Chapter 3 Dividing Intergers

Sign Rule:
If you have no negative or an even amount of negative signs in a division question, the quotient is positive.

There are 2 types of division:

Partitive Division:
Making parts

EX:
6/2=3

6/-2=-3

Quotative Division:
Sharing you total with groups

EX:
(-6)/2=-3

(-6)/-2=+3

Chapter 4 Order of operations

Brackets
Exponents
Division
Multiplication
Addition
Subtraction

(+5) x (-3) + (-6) / (+3) first you always follow BEDMAS so division is first in the question

after you do the multiplication and finally you do the addition.

example.

(+5) x (-3) + (-6) / (+3) = ( -17)

(+5) x (-3) + (-2)

(-15) + (-2)

(-17)

Justin Sunga Volume Post ( 7.4)

Outside Circle;
r = d÷2 v = pi.r.r.h
r = 10÷2 v = 3.14x5x5x40
r = 5cm v = 3140cm³
3140cm³-2009.6cm³ = 1130.4cm³

Inside Circle;
r = d÷2 v = pi.r.r.h
r = 8÷2 v = 3.14x4x4x40
r = 4cm v = 2009.6cm³

Justin Sunga's Pay it forward

Part 1 .

Trevor, who is eleven year old child. He was given an assignment from his teacher in social studies Mr. simonet to make a difference and change the world. Trevor came up with the idea "pay it forward". Pay it forward is when Trevor helps three people, who then helps three more people and so on.

Part 2 .

My group (Kyle, Ivan, AJ, and me) decided to shovel people pathways. We chose this activity, because it was winter. We also chose it because alot of people hadn't shoveled their pathway. We decided to help the community.We decided to do this activity on saturday(Dec 18th)

Proof -


Part 3 .

Our act of kindness helped alot of people. what happened was that we went door to door and shoveled people's path. It felt nice helping people, since most people didn't shovel their path.All of the people were surprised in what we were doing for them. After we finished, we asked every person to pay it forward. The people were kinda shocked when we had told them to "pay it forward". We explained what pay it forward was.


Part 4 .
The idea of pay it forward is to help people and make a difference in the world. Our act of kindness has made a difference in people's lives, helping them has also made a difference in our lives.

Justin Sunga's Scribe Post

The average male is 15% body fat. If Jack has a body mass of 79 kgs, how muc of him is body fat ?
Jack has 11.85 kilograms of body fat .



Last year the Bomber averaged 25 200 fans per game. This years attendance dropped by 4.9%. What was this years average attendance ?
This years Bomber attendance had 1234.8 fans at the game .

Justin Sunga's Pythagoras Scribe Post ( part 2 )

12 . a) a'2 + b2 = c'2
20'2 + 32'2 = c2
400 + 1024 = 1424 cm'2
[ 1424=1424'2 ]

b) a'2 + b'2 = C2 .
576'2 + 100'2 = C'2
331776+10000=341776 cm '2

c)
a'2 + b'2 = c'2
25'2 + 90'2 = c'2
625+8100=8725cm'2
[8725=8725cm'2 ]

d ) a'2 + b'2 = c'2
12'2 + 12'2 = c'2
144+144=288cm '2
[ 288=288 cm'2 ]


17 .
a) a'2 + b'2 = c'2
21'2 + 28'2 = ;
441 + 784 = c2
[ 1225= c'2 ]

b) a'2+b'2=c'2
12'2 + 5'2=c'2
144 + 25 = c'2
169=c'2

VIDEO :

Justin Sunga's Pythagoras Scribe Post

Scribe 4 : pg # 4 ,9 ,12 , 17

4 . What are the area's of the 3 squares shown ?













Answer : 30x30 =900
40x40=1600
4x4=16





9 . a) Calculate the area of the 3 squares .




b) it isnt a right triangle because the legs do not equal the hypotenose .

Justin.S Sesame Street Video

Group Members : Kyle , Justin .S

Part 1 :

Two term ratio : Compares 2 quantities measured in the same units. (a:b)

Three term ratio : Compares 3 quantities measured in the same units. (a:b:c)

Part to part ratio : Compares different parts of a group to each other. (a:b, 2:5)

Part to whole ratio : Compares one part of the group to the whole group. It can be written as a fraction, decimal, & percent. (b:all letters, 5:8)
Rate; Compares 2 quantities measured in different units (2km/2hr)
Propertion reasoning : A relationship that says that 2 rates or ratios are equal. It can be written in fraction form. (2/3 = 6/9. (x3)

Part 2 :

The original video ' Grover Explains Exit '



http://www.sesamestreet.org/video_player/-/pgpv/videoplayer/0/c1209e15-1550-11dd-8ea8-a3d2ac25b65b/grover_explains_exit

Remake :