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El precio original es de : 100% = x
El descuento es de 15% :
100% - 15% = 85%
osea se pago un 85% = $ 476
RESOLVIENDO:
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POR REGLA DE TRES:
85% ------------- $476
100% ----------- X
476 × 100 47600
X = ----------------- = -------------- = 560
85 85
RESPUESTA:
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El celular cuesta $ 560
COMPROBAMOS:
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560 = 476 + (15% × 560)
560 = 476 + 84
560 = 560 ==>> CORRECTO