SOLUTION: a total of 1,200 students attended top view high school the ratio of teachers to students is 1:30. i)how many teachers are there in the school? two thifths of the student

Algebra ->  Percentages: Solvers, Trainers, Word Problems and pie charts -> SOLUTION: a total of 1,200 students attended top view high school the ratio of teachers to students is 1:30. i)how many teachers are there in the school? two thifths of the student      Log On


   



Question 357178: a total of 1,200 students attended top view high school the ratio of teachers to students is 1:30.
i)how many teachers are there in the school?


two thifths of the students own personal computers
ii) how many students do not own personal computers?


thirty percent of the students who own personal computers also own play stations.
iii) what fractions of the students in the school own play stations?

Found 2 solutions by stanbon, killer travis:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
a total of 1,200 students attended top view high school the ratio of teachers to students is 1:30.
i)how many teachers are there in the school?
1:30 is the same as x:30x
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Equation:
x + 30x = 1200
31x = 1200
x = 1200/31
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# of teachers = 1200/31 is approximately 39
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two thifths of the students own personal computers
ii) how many students do not own personal computers?
What are thifths?
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thirty percent of the students who own personal computers also own play stations.
iii) what fractions of the students in the school own play stations?
Answer depends on the answer to ii.
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Cheers,
Stan H.

Answer by killer travis(1) About Me  (Show Source):