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16-08-2021
Mathematics

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A mother is now nine times as old as her son. In four years' time she will be five times as old as her son.What are their present ages

Respuesta :

loconte loconte

16-08-2021

Answer:

son = 4

mom=36

m = 9s

m + 4 = 5(s+4)

m + 4 = 5s + 20

9s + 4 = 5s + 20

4s = 16

s = 4

m = 36

Step-by-step explanation:

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