wong2008jwen wong2008jwen

20-04-2022
Mathematics

contestada

The product of the ages of a man and his son is 160. In four years time, the man will be four times as old as his son. Find their ages.

Respuesta :

jsimpson11000 jsimpson11000

20-04-2022

Answer:

father = 32 s = 5 y/o

Step-by-step explanation:

f s = 160 ====> s = 160/f

f+4 = 4 ( s+4)

f + 4 = 4 (160/f +4)

f + 4 = 640/f + 16

f^2 + 4f = 640 + 16 f

f^2 -12f - 640 = 0 Use Quadratic formula to find f = 32 then s = 5

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