Created from Youtube video: https://www.youtube.com/watch?v=zf7_7NXqRHUvideoConcepts covered:ratio, proportion, means and extremes, geometric mean, arithmetic mean
The video "8.1A--Ratio and Proportion" introduces key vocabulary related to ratios and proportions, explaining that a ratio is a quotient of two numbers and a proportion is an equation stating two or more ratios are equal. It also covers the concepts of means and extremes in proportions, the difference between geometric and arithmetic means, and provides examples of finding missing terms in proportions using multiplication and division techniques.
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8.1A--Ratio and Proportion
Concepts covered:ratio, proportion, means and extremes, geometric mean, arithmetic mean
The video "8.1A--Ratio and Proportion" introduces key vocabulary related to ratios and proportions, explaining that a ratio is a quotient of two numbers and a proportion is an equation stating two or more ratios are equal. It also covers the concepts of means and extremes in proportions, the difference between geometric and arithmetic means, and provides examples of finding missing terms in proportions using multiplication and division techniques.
Question 1
A ratio can be expressed as 5:3.
Question 2
What is the geometric mean of 1 and 4?
Question 3
In a proportion, the means are the _____ terms.
Question 4
CASE STUDY: A company is analyzing its financial ratios to assess performance. They need to determine if their current ratio of 3:2 is equivalent to another ratio of 9:6.
Identify the incorrect application of ratio equivalence.
Question 5
Geometric mean involves equal means in a proportion.
Question 6
How do you find a missing term in proportions?
Question 7
The geometric mean is also known as the _____ mean.
Question 8
CASE STUDY: A student is solving a math problem involving proportions. They need to find the missing term in the proportion 5/10 = x/20.
Identify the incorrect method to find x.
Question 9
Arithmetic mean is the same as geometric mean.
Question 10
What is a proportion in mathematics?
Question 11
A ratio can be expressed as 5 : 3 or _____.
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