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Sunday, October 14, 2012

Kathleen's Proportion Post


Part 1

Ratio-shows the same size of two or more values. You can express is by using a fraction bar, a column bar ":" or a word ratio.
Rate- compares two quantities measured in different units.


Proportion-a relationship that says two ratios or rates are equal

Part 2

1.) 5 hours to travel 360 kilometers is about _____km/h.

5 divided by 5 = 1h

360 divided by 5 = 72km
5 hours to travel 360 kilometers is about 72 km/h

2.) Emma saves 28 cents of every dollar that she earns.  Emma earned $75 last week.  How much money did Emma save last week?


 

Part 3

What are the three ways you can prove that equivalent ratio statements are true?
1.) 3/4 = 12/16  or 2.) 4/9 = 16/32



Part 4


Here's a link explaining how proportions work


Part 5

http://www.concurringopinions.com/wp-content/uploads/2011/10/CrimeInAmerica2.jpg

1.) Does this seem fair?

It doesn't seem fair because Paul Allen (The CEO) only gets 3 years in prison because he did a scheme that invovled 3 billion dollars while Roy Brown (2nd article) gets imprisoned for 15 years just because he stole $100. On top of that, Mr. Allen didn't confess about his doings while Mr. Brown called the police the next day after he stole it.

2.) With what you know about proportion look and read what is in the image above. Does it seem just and fair?



No.

3.) Why have you made this choice? 


4.) What would you have done if you were the judge?

 I would have switched the prison sentences and I would've given the CEO the 180 month sentence and I would've probably gave Roy Brown the 40-month sentence.

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