Tuesday, November 29, 2011

Birth and death rate for Japan





year


2011: 126124097.55
2012: 126124097
2013: 126033288
2014: 125942545


2015: 126851867
2016: 126761254


As from the middle of the 20th century world pop started to grow immensely and will continue to develop in the same way for some 50-100 years on and after that the growth will stagnate.

The population growth development is based on the data we have so far. However, there are many factors that can influence the way in which the pop is growing. In future, the way of life will change and influence birth and death rate. Such factors are medicine, technology, economy, natural resources, political stability, etc. Future is not so predictable, and as the population decreased during the World Wars regardless of the estimations, some of these factors can bring either increase or decrease in the number of people.




























Friday, November 18, 2011

Life exspectancy of japan



https://docs.google.com/spreadsheet/ccc?key=0AgAH34Rl8J57dHRXY2d0UnhFSi0tTU1EeVZ1cnRBNkE&hl=en_US#gid=0

I could not copy it so go on the link and u will seee it :)












                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   

Friday, November 11, 2011

Viktor yorkie


Work out how many weeks it will take for the dog to reach it's optimum weight of 5kg? 


it will take 50 weeks 

Wednesday, October 26, 2011

Motions and Functions

Questions:




Awnsers:
1) yes the did
2)no they were not at the same speed
3)no they were nit all at constant speed





Wednesday, October 19, 2011

Questions on percentage unit




  • How do you feel about fractions, decimals, and percentages?
  • I think that some of it is easy, although I have a lot of problems whit fractions, but the rest I sort of know how to do. Now figured out a way that our math teacher taught us whit a dupe thing like the two butt checks.

  • What is confusing?
  • The confusing thing  is not fractions but compound interest thing i didn't really understand.

  • What is easy?
  • Easy thing, as i said before are decimals and percentages.

  • What do you want to know?
  • How to do the compound interest thing.

Monday, October 10, 2011

Investing on parents

My parents said that they are not investing in anything right now.But if in the future they would invest they would probably invest on properties such as houses.

Friday, September 23, 2011

Real life situations Percentege

First event:
Last week we had 20 guests at home. Plus the family we were 24 persons. In order to buy the beverage we had to calculate the percentages of people drinking alcohol and non-alcoholic drinks. At the end 75% of people drink alcohol and 25% not. Based on that we bought lot's of wine and some coke?


Anwser for event one:Math problems:



20 gusts + family 4=24 people
75% drank alcohol
25% non-alcohol.
How many people drank alcohol? <3

75% : 100 X :24
75 X 24=100
75 X 24= 1800
1800=100 x
X = 1800/100


Tag off 0
X=18 fraction 1 = 18
24-18=6



18 people drank alcohol and 6 did not drink non alcoholic beverages.

20 gust + 4 pepole = 24 pepol in total

75% alchohole
25%non alchahole
 we bought more alchole that non alchahole

3 fourth of are bevrge were alchholic and 1 fourth was not.



operation: 50+
                25=75

0.25 = too  25 over 100 we reduce it = one forth non alchhole.



Event two:Usually our dogs eat special pet food we buy at the shop. However we had quite some food leftover from party and we decided to give it to the dogs. But we had to do in equal proportions and not exceeding the portion intake. Each dog is eating 400g of food. This is 1200g for three dogs. We had 480g of food leftover, this meant each dog would get 40% leftover and 60% pet food?