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شائع Word Problems >

Jairo is 4 years older than his sister Emma. The sum of the squares of their ages is 58. How old is Emma?

الحلّ

J ai ro i s 4 ye a rs o l d er t han hi s s i s t er E mma . T h e s u m o f t h e s q u a res o f t h e i r a g es i s 58. Ho w o l d i s E mma ?

الحلّ

Emma^{'} s age is : 3

خطوات الحلّ

Translate the problem into an equation:

x^{2} + (x - 4)^{2} = 58

x^{2} + (x - 4)^{2} = 58, x

حلّ لـ:

x = 7, x = - 3

Emma's age جد:

3

Emma^{'} s age is : 3

أمثلة شائعة

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