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4 years ago

5

en la plaza de un pueblo se quiere colocar una estatua dedicada a un ciudadano. Se desea situarla a igual distancia de la iglesi

a, el ayuntamiento y el colegio. Traza el punto exacto donde se debe colocarse el monumento.

1 answer:

notka56 [123]4 years ago

8 0

Answer:

Step-by-step explanation:

hhh

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Answer:

A. 605 mL of the 35% solution

B. 55 mL of the 95% solution

Step-by-step explanation:

It is given that, you need 660 mL of a 40% alcohol solution. On hand, you have 35% alcohol mixture. You also have a 95% alcohol mixture.

Let x and y be the amount of 35% alcohol solution and 95% alcohol solution (in mL) respectively.

So,

Amount equation: $x+y=660$ ...(1)

Alcohol equation : $0.35x+0.95y=0.40(660)\Rightarrow 0.35x+0.95y=264$ ...(2)

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Therefore, we need 605 mL of the 35% solution and 55 mL of the 95% solution.

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Length of NB:

$NB=\sqrt{\left(\dfrac{a}{2}\boxed{-}\boxed{2}a\right)^2+\left(\dfrac{b}{2}\boxed{-}\boxed{0}\right)^2}=\\\\\\=\sqrt{\left(\dfrac{a}{2}\boxed{-}\dfrac{\boxed{4}\boxed{a}}{2}\right)^2+\left(\dfrac{b}{2}-\boxed{0}\right)^2}=\\\\\\
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