SOLUTION: 3 out o 7 students passed a math class. what will be the class size if 91 students pass in that class?

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Question 830497: 3 out o 7 students passed a math class. what will be the class size if 91 students pass in that class?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
3 out o 7 students passed a math class. what will be the class size if 91 students pass in that class?
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Use a proportion:
class/pass = class/pass
x/91 = 3/7
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x = 91(3/7)
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x = 13*3 = 39
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Cheers,
Stan H.
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