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Популярное Word Problems >

Maryl is 7 years older than Shaira. 5 years ago the sum of their ages was 30. How old are they now?

Решение

M a ry l i s 7 ye a rs o l d er t han S hai r a . 5 ye a rs a g o t h e s u m o f t h e i r a g es w a s 30. Ho w o l d a re t h ey n o w ?

Решение

Maryl^{'} s age is : 23 \frac{1}{2}

Shaira^{'} s age is : 16 \frac{1}{2}

Шаги решения

Translate the problem into an equation:

x - 5 + x - 7 - 5 = 30

Решите для

x, x - 5 + x - 7 - 5 = 30 : x = \frac{47}{2}

Найдите age

Maryl^{'} s age is : 23 \frac{1}{2}

Shaira^{'} s age is : 16 \frac{1}{2}

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