Subscribe:

## Thursday, October 13, 2011

### Patricia's Proportion Post

ratio - A comparison of quantities in the same units.

Example:

Ratio Notation: 3:9 , Fraction: 3/9

rate - A comparison of two quantities measured in different units.

Example:

\$ 1.69/100 grams.

proportion - An equation which states that 2 ratios (fractions) are equal.

Example:

2/6 = 4/12

1. 5 hours to travel 360 miles is about 72 mph

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.

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

3/4 = 12/16 True
4/9 = 16/32 False

Find a video about using proportion and embed it in your post. Make sure you select the small size of the video.

1. Does this seem fair?
It does not seem fair because the homeless guy only stole \$100 and the other guy stole 3 billion.

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?

I think its not fair because the rich guy stole 3 billion while the homeless guy has to spent time in jail for 15 years.

3. What would you have done if you were the judge?

If I were the judge I will give the homeless guy 1 year or maybe less.