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Beliebt >

Joanne is 3 years older than Amy. Three times Joanne’s age is 15 years more than twice Amy’s age. How old are Joanne and Amy?

Lösung

Joanne is 3 years older than Amy. Three times Joanne’s age is 15 years more than twice Amy’s age. How old are Joanne and Amy?

Lösung

Joanne^{'} s age is : 9

Amy^{'} s age is : 6

Schritte zur Lösung

Translate the problem into an equation:

3 x = 15 + 2 (x - 3)

Löse nach

x, 3 x = 15 + 2 (x - 3) : x = 9

Finde age

Joanne^{'} s age is : 9

Amy^{'} s age is : 6

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