Thursday, October 13, 2011

Marielle's Proportion Post

Task 1:

Ratio - comparison between two different of things.

Rate - A comparison of twoo quantities measured in different units. it can be expressed as a fraction, but cannot be express as a percent. Unit rate is a rate in which the second term is one
Proportion - A relationship that says that two ratios or rates are equal.

Task 2:

1. 5 hours to travel 360 miles is about 72mph. Here's how I did it. . . .

2. As a playgroup worker, if I increase the amount of apple juice I am serving at the playgroup from 25 ml to 100 ml, how much should I increase the the orange juice to, to keep the quantities in the same proportion? The orange juice is 50 ml to start with.

Task 3:
What are the three ways you can prove that equivalent ratio statements are true?
3/4 = 12/16

Task 4:

Task 5:

  • Does this seem fair?

  •  15 years in prison for stealing 100 dollars is not fair.
  • With what you know about proportion look and read what is in the image above. Does it seem just and fair? Why have you made this choice?

  • This is NOT fair because Paul R. Allen stole 3 billion dollars and he only have to stay in prison for 40 months/ 3years. However, a homeless man, Ray Brown only stole 100 dollars and he have to stay in jail for 15 YEARS!! Even though he felt guilty.
  • What would you have done if you were the judge?

  • If I were the judge I would give Paul Allen a 15 years contract (or even more than 15 years!) and Roy Brown should only have a year or half in prison.

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