Junior Secondary · 8-9 · Mathematics
What is a ratio?
A comparison of two quantities, often written as a:b
If a recipe calls for a ratio of 2 cups flour to 1 cup sugar, how much sugar do you need for 6 cups of flour?
3 cups
What is a proportion?
An equation stating that two ratios are equal
Solve the proportion: 3/4 = x/12. What is x?
x = 9
What is 20% of 150?
30
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