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Naily [24]
3 years ago
15

Despues de sacar de un tanque 1600 litros de agua, el nivel de esta decendió de 2/5 a 1/3. ¿cuantos litros habra que añadir para

llenar el tanque hasta sus 5/8?
Spanish
1 answer:
Alex73 [517]3 years ago
5 0

Answer:

\Delta V = 7000\,L

Explanation:

El volumen de agua es directamente proporcional al nivel de agua. El volumen inicial de tanque se determina por regla de tres simple:

                                      Volumen              Nivel relativo

                                            V                           2/5

                                        V-1600                      1/3

\frac{\frac{2}{5} }{\frac{1}{3} }\cdot (V-1600) = V

\frac{6}{5}\cdot (V-1600) = V

6\cdot V - 9600 = 5\cdot V

V = 9600\,L

El nivel requerido para obtener un nivel relativo de 5/8 es:

V = \frac{\frac{5}{8} }{\frac{2}{5} }\cdot 9600 \,L

V = \frac{25}{16} \cdot (9600\,L)

V = 15000\,L

La cantidad de agua a añadir es:

\Delta V = 15000\,L - 8000\,L

\Delta V = 7000\,L

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