Looneytunness9186 Looneytunness9186
  • 25-02-2021
  • Mathematics
contestada

Por un pantalón y unos zapatos he pagado 126€. Si el precio del pantalón aumentara en un 14%,entonves sería el 75% del precio de los zapatos. ¿Cuánto pagué por cada uno?

Respuesta :

fichoh
fichoh fichoh
  • 26-02-2021

Responder:

Pantalón = 50 €

Zapatos = 76 €

Explicación paso a paso:

Total pagado por pantalón y zapatos = 126

Sea el precio del pantalón = p; zapatos = s

p + s = 126

1,14 p = 0,75 s

p = 0,75 s / 1,14

0,75 s / 1,14 + s = 126

(0,75 s + 1,14 s) / 1,14 = 126

0,75 s + 1,14 s = 143,64

1,89 s = 143,64

s = 143,64 / 1,89

s = 76

p + s = 126

P = 126 - s

P = 126 - 76

p = 50

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