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Tom [10]
3 years ago
5

Does the data in the table represent a direct variation or an inverse variation write an equation to model the data in the table

x 6,8,12,20 y 9,12,18,30
Mathematics
1 answer:
Ira Lisetskai [31]3 years ago
4 0

Answer:

direct variation

Step-by-step explanation:

For direct variation k = \frac{y}{x} ← k is the constant of variation

For inverse variation k = yx

Expressing the data as ordered pairs

(6, 9), (8, 12), (12, 18), (20, 30)

k = \frac{9}{6} = \frac{12}{8} = \frac{18}{12} = \frac{30}{20} = \frac{3}{2} = 1.5 ← indicating direct variation

Equation is

y = kx = 1.5x

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Answer:

450 ml.

Step-by-step explanation:

Let x be the amount of water drank by Alla and y be the amount of water drank by Balla.

We have been given that Alla and Balla together drink 750 ML of water. We can represent this information as:

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We are also told that Alla drinks 50% more than Balla. We can represent this information as:

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Step-by-step explanation:

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