SOLUTION: a class has 35 children.5/7 of the children in the class are girls.how many boys are in the class? the answer must not be a fraction,it must be a whole number!!!!

Question 828050: a class has 35 children.5/7 of the children in the class are girls.how many boys are in the class?
the answer must not be a fraction,it must be a whole number!!!!
Answer by LinnW(1048) (Show Source): You can put this solution on YOUR website!
If 5/7 are girls 2/7 are boys
Notice 5/7 + 2/7 = 1 where 1 is a whole class.
(2/7)(35) = 2*35/7 = 2*5*7/7 = 2*5 = 10
* * * * * | 2/7
* * * * * |
:
* * * * * | 5/7
* * * * * |
* * * * * |
* * * * * |
* * * * * |

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