Ask Question
19 August, 10:02

If y is inversely proportional to x and y=7 when x = 9, find x when y = 14

+3
Answers (1)
  1. 19 August, 10:16
    0
    x = 63/14

    Step-by-step explanation:

    The general rule for inverse proportion is y = k/x, where k is the constant of proportionality.

    Here, y = 7 when x = 9. Thus, y = k/x becomes 7 = k/9. Mult. both sides by 9 to remove fractions and to isolate the constant k, we get 63 = k.

    Thus, the rule in this case is y = 63/x.

    Now suppose that y = 14. Using the above rule, find the vaue of x:

    14 = 63/x. Mult. both sides by x, we get 14x = 63. Solve this for x by dividing both sides of we get 14x = 63 by 14: x = 63/14.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “If y is inversely proportional to x and y=7 when x = 9, find x when y = 14 ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers