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Mathematics 17 Online
OpenStudy (anonymous):

30 students in the first period algebra I class, 18 are girls. If this class is representative of all classes, how many students in a school of 500 are girl?

OpenStudy (saifoo.khan):

30 : 18 x : 500 cross multiply.

OpenStudy (saifoo.khan):

50,000

OpenStudy (anonymous):

haha

OpenStudy (anonymous):

ANSWER THE QUESTION

OpenStudy (anonymous):

wow, did you even try what saifoo khan said?

OpenStudy (anonymous):

300 is your answer divide 18 by thirty, multiply by 500 to get three hundred.

OpenStudy (anonymous):

THANKS

OpenStudy (saifoo.khan):

rofl, it 300

OpenStudy (anonymous):

30 : 18 500 : x cross multiply it 9000=30x x=300

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