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Mathematics, 09.03.2021 18:20 meababy2009ow9ewa

En las ofertas de una papelería, hay el siguiente aviso: "si su compra es superior a Q 400.00, hay un obsequio de tarjetas pequeñas, donde la mitad de la suma de 9 con el número de tarjetas que se dan es igual a 15". ¿Cuántas tarjetas recibe el cliente que hace comprar cuyo valor es superior a Q 400.00 en la papelería?

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