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H: x
2x + x = 570
3x = 570
x= 190
Rpta: 190 soles
Espero haberte ayudado :v !
p = 2h
2h+h = 570
3h = 570
h = 570/3
h = 190
p = 2h = 190*2 = 380
comprobación:
380+190 = 570
Respuesta:
el hijo gana 190 soles