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Alekssandra [29.7K]

3 years ago

12

Dtermine wether y varies directly with x. If so, find the constant of variation k and write the equation. X (7,21,63,189) Y (14,

42,126,378)

1 answer:

alexandr1967 [171]3 years ago

4 0

Answer:

Yes.

Step-by-step explanation:

K equals 3. They all multiply by 3.

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You have a bag of 12 marbles. Four are blue, 6 are green, 2 are red, and the others are yellow. What is the probability of drawi

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Answer:

$Probability = \frac{1}{11}$

Step-by-step explanation:

Given

$Blue = 4$

$Green = 6$

$Red = 2$

$Total = 12$

Required

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This is calculated as follows:

$Probability = P(Red\ and\ Green)$

$Probability = P(Red)\ and\ P(Green)$

$Probability = \frac{n(Red)}{Total} * \frac{n(Green)}{Total - 1}$

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$Probability = \frac{2}{12} * \frac{6}{12- 1}$

$Probability = \frac{2}{12} * \frac{6}{11}$

$Probability = \frac{1}{6} * \frac{6}{11}$

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<em>Hence, the required probability is 1/11</em>

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