Question

If X and Y vary directly with each other and x =24 . What is y when constant of variation is 3?

Answer = 8

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Answer 1

Answer:

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Answer 2

The value of y = 8

Given:

x and y vary directly with each other and x = 24

To find:

The value of y when constant of variation is 3

Solution:

Given x and y vary directly with each other  

Which mean x and y is directly proportional to each other

⇒ x ∝ y

⇒ x = ky -----(1)   [ where k is arbitrary constant ]

Given that x = 24 and constant of variation k = 3

Substitute x, k values in (1) to find the y value

⇒ x = ky

⇒ 24 = (3)y

⇒ y = 24/3

⇒  y = 8  

Therefore, the value of y = 8

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