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katrin2010 [14]
3 years ago
10

in a class, 2/7 of the students have blue eyes. if there are 35 students in the class, how many have blue eyes?

Mathematics
2 answers:
Anna35 [415]3 years ago
7 0
The answer is: 10 (ten).  

        Ten (10) students in the class have blue eyes.

_________________________________________________________
 
(2/7)* (35) = (2/7) * (35/1) ;  

the "7" cancels to a "1"; and the "35" changes to a "5" ; since "35÷7= 5" ;
___________________________________________________________
   (2/1) * (5*1) = (2*5)/(1*1) = 10/1 = 10 .
_____________________________________
     The answer is 10 (ten).  
      Ten (10) students in the class have blue eyes.

_________________________________________________________
Arada [10]3 years ago
4 0
35/7 = 5
5 times 2 = 10
That means if 35 students are in the classroom, 10 will have blue eyes.
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