Respuesta:
50
Explicación paso a paso:
2(9k)-10k=40
18k-10k=40
8k=40
k=5
------------------
C=10k
C=10(5)
C=50
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Respuesta:
50
Explicación paso a paso:
2(9k)-10k=40
18k-10k=40
8k=40
k=5
------------------
C=10k
C=10(5)
C=50