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Hallar 25 © 9
X © y= 3√ - 2√y
X© y= 3√25 - 2√9
X©y= 3(5) - 2(3)
X©y= 15 - 6
X © Y= 9.
2)
Vende 1/3 __Queda 2/3
Luego vende 2/5 del resto:
2/5 de 2/3= 4/15
Sumamos
1/3+ 4/15=
5/15+4/15= 9/15= 3/5 lo que ha vendido.
El Resto= 2/5
2/5 X= 30
2x= 30×5
X= 150/2
X= 75
Ha tendió 75 artículos inicialmente.
Saludos❤️