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3 years ago

13

Find the value of y. 4 2 √3 6 6 √3

1 answer:

SpyIntel [72]3 years ago

4 0

$\triangle ABC\ \text{and}\ \triangle ACD\ \text{are similar. Therefore the sides of triangles}\\\text{ are in proportion:}\\\\\dfrac{y}{9+3}=\dfrac{9}{y}\qquad\text{cross multiply}\\\\y^2=(9)(12)\\\\y^2=108\to y=\sqrt{108}\\\\y=\sqrt{36\cdot3}\\\\y=\sqrt{36}\cdot\sqrt3\\\\\boxed{y=6\sqrt3}$

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Y_Kistochka [10]

By estimation you have:

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Ratling [72]

Answer:

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Step-by-step explanation:

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This weekend Vanessa made 4 times as many batches as last weekend. She made a total of 25 batches for the two weekends. Determin

MissTica

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Step-by-step explanation:

Let x be the number of batches made y Vanessa last weekend.

Given : This weekend Vanessa made 4 times as many batches as last weekend.

i.e. Number of batches made this weekend = 4x

She made a total of 25 batches for the two weekends.

i.e. $x+4x=25$

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Divide both sides by 5 , we get

$x=5$

i.e. number of batches made y Vanessa last weekend = 5

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