Hey can someone help me with some algebra? I just need some help on this: Kyra observed that 85% of the students at a library liked reading mystery stories. If 30 students at the library did not like reading mystery stories, the number of students at the library who liked mystery stories was _____. (only put numeric values, no other symbols)

Question

anonymous · Answer

30 students did NOT like reading mystery stories. 100 - 85 = 15. So 15% of the students did not like reading mystery stories.

anonymous · Answer

170.

anonymous · Answer

85 / 15 = 17/3
30 * 17/3 = 170.

anonymous · Answer

So 85% = 170. And 30 = 15%

anonymous · Answer

Now you understand how to figure out the problem, correct? @SectorZ423

anonymous · Answer

let the number of students be x
(85/100)*x=0.85x
remaining students=x-0.85x=0.15x
0.15x=30
x=200

anonymous · Answer

Correct now (just because) how many students in total?

anonymous · Answer

200

anonymous · Answer

170 + 30 = 200.
85% + 15% = 100%.

anonymous · Answer

thanks even though that wasnt part of the answer I just wanted to know

anonymous · Answer

so the number of students who liked mystery stories=200-30=170

anonymous · Answer

Exactly