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Wednesday, October 12, 2011

Ratio : is a quantitative relation between two amounts showing the number of times one value contains or is contained within the other.
example: A ratio is a comparison of two numbers. Separate the two numbers in the ratio with a colon. you want to write the ratio of 3 and 12.We can write this as 3:12 or as a fraction 3/12, and we say the ratio is three to twelve.
Rate : A measure, quantity, or frequency,one measured against some other quantity or measure.
example: You have a family of four people; 2 adults, one 9 year old child, and one 5 year old child. You have selected the American Plan Package (basic cabin rate + 3 meals per day) as the best package for your family. You would like cabin #33. Your rate would be $380.
Proportion: A part or number considered in comparative relation to a whole.
example: Solve for n: 1/2 = n/4. Using cross products we see that 2 × n = 1 × 4 =4, so 2 × n = 4. Dividing both sides by 2, n = 4 ÷ 2 so that n = 2.

5 hours to travel 360 miles is about _____mph
divided by 1
Hours 5 1
______ _______ = _________
Miles 360 1
divided by 1
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.
divided by 4
a 25 100
________ ______ = ________
o 50 12.5
divided by 4

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?
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?
No it doesnt seem fair because the homeless guy only took 100$ and he didnt hurt anyone.
3) What would you have done if you were the judge?
if i were the judge i would have let the homeless guy go.


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