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08-09-2019
Mathematics

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suppose that y varies directly with x and y=3 when x=9. What is y when x=18

Respuesta :

MathPhys MathPhys

08-09-2019

Answer:

6

Step-by-step explanation:

y varies directly with x means:

y = kx

Given that y = 3 when x = 9:

3 = 9k

k = 1/3

Therefore:

y = 1/3 x

When x = 18:

y = 1/3 (18)

y = 6

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nhileyendo nhileyendo

08-09-2019

Answer: 6

hope it's right

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