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30percentage of the class are 10 yars old and the other 21 children are 11 year old how many children were the class

Solución

30percentage of the class are 10 yars old and the other 21 children are 11 year old how many children were the class

Solución

Percentage : \frac{1}{3}

Class^{'} s age is : y

Pasos de solución

Translate the problem into an equation:

30 x = 10

Resolver para

x, 30 x = 10 : x = \frac{1}{3}

Hallar age

Percentage : \frac{1}{3}

Class^{'} s age is : y

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