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Mathematics 60 Online
OpenStudy (anonymous):

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)

OpenStudy (anonymous):

medal is here

OpenStudy (anonymous):

First find the total amount of students

OpenStudy (anonymous):

x(0.15)=30

OpenStudy (anonymous):

solve for x

OpenStudy (anonymous):

x=200

OpenStudy (anonymous):

so the total number of students is 200

OpenStudy (anonymous):

now find 85% of 200

OpenStudy (anonymous):

200 x 0.85 = 170

OpenStudy (anonymous):

so the answer is 170 students like mystery

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