Question

y is inversely proportional to x . When y = 12 , x = 10 Work out x when y = 30

Answer 1

Answer:

x = 4

Step-by-step explanation:

x * y = x * y

12 * 10 = x * 30

x = 4

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Answer 2

Step-by-step explanation:

when y is inversely proportional to x

then x₁y₁ = x₂y₂ = x₃y₃

hence 12 × 10 = x₂ × 30

=> x₂ = (12×10)÷30

=> x₂ => 4