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Nine years ago, Jareth was five times as old as Dave. Now, he is only three times as old as Dave. Find their present ages.

Solución

Nine years ago, Jareth was five times as old as Dave. Now, he is only three times as old as Dave. Find their present ages.

Solución

Dave^{'} s age is : 18

Jareth^{'} s age is : 54

Pasos de solución

Translate the problem into an equation:

3 x - 9 = 5 (x - 9)

Resolver para

x, 3 x - 9 = 5 (x - 9) : x = 18

Hallar age

Dave^{'} s age is : 18

Jareth^{'} s age is : 54

Ejemplos populares

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