I can't fit this all in a question so I will give information about it.

There are 20 students in a math class who have brown hair. This represents 80 percent of the students in the class. Which equation can be used to find the total number of students in the math class?

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1 Answer

Answer 3. 20/?=80/100. 20 is 80/4 so the number of students is 100/4=25.
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