Ask Question
14 November, 10:33

Q is directly proportional to r. q is 76 when r is 20. work out q when r is 45.

+1
Answers (1)
  1. 14 November, 12:49
    0
    Q α r

    q=kr

    thus

    k=q/r

    when r=20, q=76

    hence

    k=76/20=

    q=76/20r

    when r=45 the value of q will be:

    q=76/20*45

    q=171
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “Q is directly proportional to r. q is 76 when r is 20. work out q when r is 45. ...” 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