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Популярное Word Problems >

Bill is twice the age of Dan. In 7 years, Bill will be one and one half as old as Dan. How old is bill now?

Решение

B i ll i s tw i ce t h e a g e o f D an . I n 7 ye a rs, B i ll w i ll b e o n e an d o n e ha l f a s o l d a s D an . Ho w o l d i s bi ll n o w ?

Решение

Bill^{'} s age is : 14

Шаги решения

Translate the problem into an equation:

2 x + 7 = \frac{3}{2} (x + 7)

Решите для

x, 2 x + 7 = \frac{3}{2} (x + 7) : x = 7

Найдите Bill's age

: 14

Bill^{'} s age is : 14

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