Ronalen's Proportion Post

Task 1

Ratio: compares two quantities measured in the same units.
written as a:b or a to b.

Three term ratios: compares three quantities measured in the same units.
written as a:b:c or a to be to c.

Part to part ratio: compares different parts of a group to each other
10:8 is the part to part ratio of brown to red beads.


Part to whole ratio: compares one part of the group to the whole group.
5:23 is the part to whole ratio of blue to total number of beads.

Rate: rates are a comparison of two quantities measured in different units.
EX.$1.69 per 100g or $1.69/100g rate for purchasing bulk foods.

Unit rate: is the

Proportion: a proportion is an equation which states that two ratios or fractions are equal.

Task 2

1. 5 hours to travel 360 miles is about _____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.

Read more: http://sargentparkmathzone.blogspot.com/#ixzz1aaOUP2Y9
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Question 1: 5 hours to travel 360 miles is about 72 mph because if you divide 360 by 5 you get 72 miles per hour.

Question 2: as a playgroup worker you increase the amount of apple juice from 25ml to 100ml

if I increase the amount of orange juice and the orange juice is 50ml i will increase the amount to 200 because when you multiply 25 by four you get 100. If you multiply 50 by 4 you get 200.

Task 3

Three ways you can prove that equivalent ratios are true......

3 /4 = 12 /16 or 4 /9 = 16 /32 you can prove this is true by multiplying diagonally and if you get the same number for both sides it is equivalent. you can do that vertically and horizontally.

Task 4

Here is a video on a way to figure out a proportion.

Hope this helps you.

VIDEO

Task 5

This picture up here shows a social injustice.

Question 1 answer: this is absolutely unfair just because someone is poor or homeless it doesn't mean you can treat them like garbage.

Question 2 answer: this is not just and fair because the man who stole 3 billion dollars only got about 3 years in jail. A man who stole 100 dollars and later turned himself into the police got 15 years in jail.

Question 3 answer: if i was the judge i would have the man who stole 3 billion dollars the rest of his life in jail. i would have given the man who stole 100 dollars about 2 years in jail.

Thank you for reading my post. :)