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In a sample of 75 randomly selected students at school, 32 are female. There are 1, 371 students in the school. Using these results, predict the number of females in the school. a: 275 b: 343 c: 585 d:
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In a sample of 75 randomly selected students at school, 32 are female. There are 1, 371 students in the school. Using these results, predict the number of females in the school.

a: 275
b: 343
c: 585
d: 686

User Anton Kuzmin
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c: 585, You divide 1371 by 75, and multiply that by 32, then round up.  1371 is proportional to 75 and x is proportional to 32. 
User Swaathi Kakarla
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User Tammoj
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Solve the proportion. Round the results three significant digits. 0.120/3× = 0.585/275 ×=
Tammoj asked Dec 26, 2016
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