## Wednesday, October 12, 2011

### Cyerra's Proportion Post

Ratio - shows the relative sizes of two or more values

Rate - compares 2 quantities measured in different units.

Proportion - an equation which states that two ratios are equal.

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5 hours to travel 360 miles is about 72 mph

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.

What are the three ways you can prove that equivalent ratio statements are true?

3/4 = 12/16 or 4/9 = 16/32

Multiples of 3 - 3, 6, 9, 12

Multiples of 4 - 4, 8, 12, 16

3 divided by 4 = 12

4 divided by 4 = 16

******* 12/16 ********

1) Does this seem fair?
- No, it does not seem fair.

2) 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?
- The image above is not fair because the man gets 15 years in prison for stealing \$100 and the other gets less than him besides the fact that his case involved a lot more money.

3) What would you have done if you were the judge?
- If I was the judge, I would give the other man a lot more time in prison due to the fact that his case involved more money and his case sounds more serious than the man who stold the \$100.