contestada

If Mary and Tom pu their money together they have £36 If Mary's money were halved and Tom's money doubled they would have £42. How much money does each have? : 36

Respuesta :

M+t=36
M=36-t

M/2+2t=42
(36-t)/2=42-2t
36-t=84-4t
3t=84-36
T=48/3=16
M=20

Otras preguntas