Ask Question
25 June, 08:22

What number must be added to 15 - 6 and 12 to have a mean of five

+5
Answers (1)
  1. 25 June, 08:54
    0
    -1 must be added.

    15 + (-6) + 12=21. If you add one more number, then you would have to divide the sum by 4 to get the mean. 5*4=20. To get to 20, you have to add - 1.
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “What number must be added to 15 - 6 and 12 to have a mean of five ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers