Answer :
The ratios 20 / 45 and 12 / 25 are not equivalent because don't have a common factor.
Are the ratios equivalent?
Ratio is used to show the relationship that exists between two or more numbers. It expresses the number of times that one value is contained within other value(s).In order to determine if the ratios are equivalent, express both ratios in their simplest form.
To express in the simplest form, divide both numbers by their common factor.
20 / 45 = 4/9
A common factor of 20 and 45 is 5.
12 / 25 = 12/25
Here is the complete question: Determine if each pair of ratios or rates are equivalent. Explain your reasoning. 20 out of 45 students attended the concert; 12 out of 25 students.
To learn more about ratios, please check: brainly.com/question/25927869
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