Population In United States (2011-16)

4) The estimated 2012 population for the Untied States is 314939114.

5)This is my graph on the estimated growing population of the United States between the year 2011-2016. I used its birth and death rates to find them out. 

6) This graph shows how in the 1800's the developing regions were a a low. The rapidly rose during the 1950's. The developing regions may have a famine, birth rate may go down and the and/or death rate could rise.

Population In United States (2011-16)

4) The estimated 2012 population for the Untied States is 314939114.

5)This is my graph on the estimated growing population of the United States between the year 2011-2016. I used its birth and death rates to find them out. 

6) This graph shows how in the 1800's the developing regions were a a low. The rapidly rose during the 1950's. The developing regions may have a famine, birth rate may go down and the and/or death rate could rise. The

1. The graph results mean that every year the population is getting higher.
2. The life expectancy went up 0.15 every year which made it the population grow larger.
3. Probably due to new medicine and education (teaching kids to live healthy in school)

Viktor's Dog Diet Problem

Viktor's yorkie weighs 25 kgs. It needs to weigh 5 kgs. How many weeks will it take for the dog to lose 20 kgs.

If the slope is minus 2/5, and the dog need to lose 20 pounds. Multiply minus 20x5/-2=50 weeks.

A=(5.58, 7.18)

B= (2.3, 1.82)

a= 6.28

Compound Intrest

I talked to my Mom about compound interest this weekend.  She agreed that it is a good way to have your money work for you, but she also said that it is hard to see a difference if your interest amount is low and you don’t have a big number to start with and you aren’t adding to it regularly.

We then tried an exercise using an online calculator below:

Compound Interest Calculator Top of Form Inputs Current Principal: $ Annual Addition: $ Years to grow:   Interest Rate:   % Compound interest time(s) annually Make additions at start end of each compounding period   Results Future Value: $ Bottom of Form
Top of Form Bottom of Form

We started with the money I have in a savings account in Washington DC.  We assumed we kept it for 5 years when I will done with high school.  

After this exercise we went to the Moodlic calculator, went back online for the calucation and used this formula make the problem:

M = P( 1 + i )ⁿ

M is the final amount including the principal.

P is the principal amount.

i is the rate of interest per year.

n is the number of years invested.

Applying the Formula

I have $7000.00 to invest for 5 years at rate of % compound interest.

M = 7000 (1 + 0.0135)⁵ = $1157.62.

SO, 7000*1.0693=

So my $7000.00 is worth $7485.43.

Personal CPI

Divide 162978 by 161468 and you get 1.009351698. Then you round that by 98.9. The your percent increase would be 1.1. Yes this makes sense because it doesn't have to be much bigger then what it was the year before.

Real life precentages

My two real life situations were:

#1 My mom was buying a shirt that is 80 USD. The shirt is  40% off. Plus she also had to pay the sales tax, which was 9.25%. What would be the total.
First you do the discount which is .40x80= 32
                                                              -80=48
Then its 0.09254x48=4.44
The answer is $52.44

# 2 Lunch has cost 44.75 dollars. How much is that with 20% tip?
Round to 5 and then add the tip =
$9 tip with a total of 53.75

How do you feel about fractions, decimals, and percentages?

What is confusing?

What is easy?

What do you want to know?

I think i feel good about this so far. Tax and tip still confuse me a little bit. But percentages are really fun.I would like learn more about tax and tip and decimal.