if x is related to y and x = 12 & y = 4. what is y if x = 18?
Maths / Algebra MCQs — Multiple-choice practice
- A. none
- B. 6
- C. 7
- D. 5
Correct answer
6
Explanation
Explanation Using the information that x = 12 when y = 4, we can find the value of k, because y = k/x becomes 4 = k/12. Solving this for k, we get k = 3 When x = 18 y = k/x becomes y = 3/ 18 This simplifies to y = 6
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