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Reagan surveyed a number of her classmates about what time they usually go to bed. Of the fifteen classmates she asked, three said 9 p.m. What central angle measure would you use to represent this group on a circle graph?

 Mar 2, 2023
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This is a ratio of 3:15. We know that 1/5 of the classmates said 9pm, and 1/5 of 360 (circle graph total central angle measure) is 72. Hope this helps
 Mar 2, 2023

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