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Please help me with this problem..

Please help me with this problem..-example-1
User Nik Reiman
by
8.0k points

1 Answer

6 votes

Answer:

y = 6

Explanation:

Given that y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 3 when x = 9, then

k =
(y)/(x) =
(3)/(9) =
(1)/(3), thus

y =
(1)/(3) x ← equation of variation

When x = 18, then

y =
(1)/(3) × 18 =
(18)/(3) = 6

User Bogdan Kulynych
by
8.4k points

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