tanaykelly123453 tanaykelly123453

24-02-2022
Mathematics

contestada

Today, the sum of Alex's age and Maria's age is 54. 7 years ago Maria was 7 times older than Alex.
Part A: Enter Alex's age today.
Part B: Enter Maria's age today

Respuesta :

24-02-2022

7 years ago, the sum of their ages is 54 - 7 x 2 = 40

7 years ago, Alex's age was 40 : (7+1) x 7 = 35 years old (so Alex's age today is 42)

And Maria's age today is 54-42 = 12

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