maibe55diazpc4rof maibe55diazpc4rof

19-07-2018
Mathematics

contestada

I like to help in this problem: in the course of Juan 2/9 of the students are children of 13 years, 1/4 have 14 years and the rest 15 years What kind of students do they have?

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aartist aartist

19-07-2018

rest are 19/36

it is 1 -(1/4) - (2/9)
= 1-9/36 - 8/36
= (36-9-8)/36
= 19/36.

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