Ask Question
14 December, 20:03

The variable z is directly proportional to x. When x is 15, z has the value 165. What is the value of z when x = 25?

+5
Answers (2)
  1. 14 December, 20:27
    0
    275

    Step-by-step explanation:

    z is directly proportional to x:

    z = kx

    When x is 15, z is 165.

    165 = k * 15

    k = 11

    When x = 25:

    z = 11 * 25

    z = 275
  2. 14 December, 22:46
    0
    z=275

    Step-by-step explanation:

    it has a ratio 1:11

    that must be it
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “The variable z is directly proportional to x. When x is 15, z has the value 165. What is the value of z when x = 25? ...” in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers