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Популярное Word Problems >

Jisoo is 9 years older than her friend, Jennie. Four years ago, she was two times as old as her friend. Find the present age of each.

Решение

J i soo i s 9 ye a rs o l d er t han h er f r i e n d, J e nni e . F o u r ye a rs a g o, s h e w a s tw o t im es a s o l d a s h er f r i e n d . F in d t h e p rese n t a g e o f e a c h .

Решение

Jisoo^{'} s age is : 22

Jennie^{'} s age is : 13

Шаги решения

Translate the problem into an equation:

x - 4 = 2 (x - 9 - 4)

Решите для

x, x - 4 = 2 (x - 9 - 4) : x = 22

Найдите age

Jisoo^{'} s age is : 22

Jennie^{'} s age is : 13

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