Adressing climate change

Climate change:

https://www.youtube.com/watch?v=6tesHVSZJOg

What is the problem that this video addresses? It addresses how climate change could(Already is) be a major threat  to places such as Florida, New york Etc


Where does the extra water come from? The extra water is formed when Icebergs melt from warm waters and carbon dioxide.

What areas are most at risk from climate change? Type some examples and why they are at risk.

Example 1 Florida
Florida is at risk because of the large sea coast it has and how low the shoreline is

Example 2 Netherlands

Netherlands is an Endangered country from sea level rise because of the down bringing the nations capacity.

What kinds of countries do you think will be affected the most? From my perspective I think the most affected type of countries are the countries that are low lying

Learning about algebra

Collecting like terms 

You can only collect terms whose letters are the same. 

Step 1: Write out the question. 

Step 2: Blue highlight all the terms with the same letters (like terms). Make sure you also capture the plus or minus on 

2a + 3b +9a+ b + 3c

the left. 

Step 3: Now use a red highlighter for the next group of like terms.

 2a + 3b + 9a + b + 3c

Step 4: If there are any more groups of like terms then use a green highlighter around them.

 2a + 3b + 9a + b + 3c

Step 5: Now just add up how many of 

each group you have got. This is your answer! 

 2a + 3b + 9a + b + 3c     = 11a + 4b + 3c 

Questions 

Collect the like terms in these expressions: 

1. a + a =2a

2. a + 2a= 3a

3. a + 3a + b=4a + b

 4. 2a + b + 3b = 2a +4b

5. a + b + 2b + 3a= 4a +3b

6. a + 2b + 3c + 3a + 3b= 4a + 5b + 3c

7. 3x + 7y + 2x +9y = 5x+ 16y

8. 8A + 9A + 10B + 5A= 22a + 19b

9. 13d + 2f + f + f + 2d=  15d+4f

10. x + y + x + y + 2x + 2z =4x + 2y + 2z

11. 25x + 2y - 19x - y =6x + 2y

12. A + 15B - A + 5B =2a + 20b

13. 3x + 45z - 4x + 13y= 7x+45z+13

14. d - 2d + 3e + d =2d+3e

15. 2f - 3f + 9g +2f - 2f + f =10f+9g

16. -12x -15y -16x +16y =28x+31y

17. 34x + 13xy + 12y =47x+25y

18. 99x - 12xy + x - 12xy2 =(3y2 + 3y - 25)

19. 2(x + 3y) - 2x =8y + 12 x

20. 3x(2 + x) - x2 =32 x + 12a