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Ray is 19 years older than his sister Danielle. In 10 years, he will be twice as old as Danielle. How old is each of them now?

Solución

Ray is 19 years older than his sister Danielle. In 10 years, he will be twice as old as Danielle. How old is each of them now?

Solución

Ray^{'} s age is : 28

Danielle^{'} s age is : 9

Pasos de solución

Translate the problem into an equation:

x + 10 = 2 (x - 19 + 10)

Resolver para

x, x + 10 = 2 (x - 19 + 10) : x = 28

Hallar age

Ray^{'} s age is : 28

Danielle^{'} s age is : 9

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