24141048 24141048

19-11-2020
Mathematics

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The value of y varies directly with x. If x = 4, then y = 36. Find the value of x when y = 144.

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kikiboom24 kikiboom24

19-11-2020

the value of x would be 16

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mhanifa mhanifa

19-11-2020

Answer:

16

Step-by-step explanation:

Direct variation formula: y = kx

Given

x = 4, y = 36

Finding the coefficient k:

36 = 4k
k = 36/4
k = 9

So the function is

y = 9x

Solving for x, when y = 144

144 = 9x
x = 144/9
x = 16

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