This video covers ratios & percentages. We use ratios for the comparison of amounts or quantities.
A ratio also describes a relationship between 2 (two) amounts or quantities.
The next lesson: Rates
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The transcript is provided for your convenience
A ratio, for example, can be used for describing the cost of monthly rent when compared to one’s monthly income.
We can also use ratios to compare, for example, the number of elephants in a zoo with the total number of animals there, or for comparing the number of calories in different ice cream brands per serving.
A ratio is comparing quantities while using division. This is meaning that we can set ratios between quantities as division expressions between those same quantities.
For example, if we a platter containing ten (10) sugar cookies and twenty (20) chocolate chip cookies, we can compare these cookies by using a ratio.
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We may say: the ratio of our sugar cookies to our chocolate chip cookies is as follows:
And the ratio of our chocolate chip cookies to our sugar cookies is as follows:
We can be writing ratios using fractions, words, or also by using a colon which is shown below.
The ratio of our sugar cookies to our chocolate chip cookies is:
10 to 20, or we write: 10:20
