If y varies inversely as x and x = 3 when y =4. Find the value of x when y = 12
- 4
-
1
- 2
- 3
The correct answer is: B
Explanation
y = 1/x; y = \(\frac{k}{x}\)
k =xy → 3 * 4 = 12
x = \(\frac{k}{y}\)
x = \(\frac{12}{12}\) = 1
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