Ratio: A comparison of quantities that have the same units.
Rate: A comparison of two quantities measured in different units.
Proportion: An equation which states that two ratios (fractions) are equal.
Example:
For the diagram shown above, write each ratio. Express answer in three different ways.
Words: thee balls compared to six
Ratio Notation: 3:6
Words: thee balls compared to six
Ratio Notation: 3:6
Fractions: 3/6
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3) Task 3)
What are the three ways you can prove that ratio statements are true?
3/4 = 12/16 or 4/9 = 16/32
Riding 50km in 3h. Round your answer to the nearest hundreth.
A pack of 10 penicls for $2.49.
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Task 2)
5 hours to travel 360 miles is about _____mph
hours 5 (÷5) 1
-------- ---- = ---- > 72miles / hour
miles 360 (÷5) 72
- As a playgroup worker, if I increasethe 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.
apple juice 25 (x4) 100
------------- ------- = ------- > You should increase the 50 to 200ml orange
orange juice 50 (x4) 200 juice by multiplying by 4.
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3) Task 3)
What are the three ways you can prove that ratio statements are true?
3/4 = 12/16 or 4/9 = 16/32
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Task 4)
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Task 5)
- Does this seem fair? NO, I really don't think this is 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?
If I was the judge, I wouldn't think about skin colour. I would actually put myself in the characters position and think to myself what price that person should really pay.
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