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Irina-Kira [14]
3 years ago
9

dos caños A y B llenan juntos una piscina en dos horas, A lo hace por si solo en tres horas menos que b ¿Cuantas horas tarda cad

a uno separadamente?
Mathematics
1 answer:
erma4kov [3.2K]3 years ago
8 0

Answer:

t² - 7 t + 6 = 0; es una ecuación de segundo grado en t. Sus raíces son: t = 6, t = 1; la segunda solución es físicamente imposible. Uno solo de ellos no puede llenar la piscina en menos tiempo que los dos juntos. Por lo tanto uno de ellos demora 6 horas y el otro 6 - 3 = 3 horas.

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Answer:

7.76\times 10^6\ \text{inches}

Step-by-step explanation:

We know that,

1\ \text{inch}=1.578 \times 10^{-5}\ \text{miles}

We need to convert 1225 miles to inches. It can be done as follows :

1\ \text{mile}=\dfrac{1}{1.578 \times 10^{-5}}\ \text{inches}\\\\1225\ \text{miles}=\dfrac{1225}{1.578 \times 10^{-5}}\ \text{inches}\\\\=7.76\times 10^6\ \text{inches}

So, there are 7.76\times 10^6\ \text{inches} in 1225 miles.

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