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Популярное Word Problems >

The sum of the ages of Timmy and John is 30. How old are they, if John is twice as old as Timmy?

Решение

T h e s u m o f t h e a g es o f T imm y an d J o hn i s 30. Ho w o l d a re t h ey, i f J o hn i s tw i ce a s o l d a s T imm y ?

Решение

Timmy^{'} s age is : 10

John^{'} s age is : 20

Шаги решения

Translate the problem into an equation:

x + 2 x = 30

Решите для

x, x + 2 x = 30 : x = 10

Найдите age

Timmy^{'} s age is : 10

John^{'} s age is : 20

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