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 percent of the students is this?

Question

Mathematics

Alanna Cook

25 May, 12:02

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 percent of the students is this?

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Answers (2)

Know the Answer?

Santiago · Answer 1

20% of the students

Brooklyn · Answer 2

20%

Step-by-step explanation:

We can say that 3/15 students usually go to bed at 9 P. M. We can set up a proportion to solve this problem.

3/15=x/100

We cross multiply to find x

15x=300

Divide both sides by 15

x=20

So 20% of the classmates usually sleep at 9 P. M.