Ask Question
7 April, 14:12

The Times of sarah's first swim lengths are 27 seconds, 35 seconds, and 31 seconds. in how many seconds must length four be completed so the mean is 30 seconds

+2
Answers (1)
  1. 7 April, 16:36
    0
    Length four must be 27 seconds.

    Mean=x1, x2, x3, x4/n

    30=27+35+31+x4/4

    30*4=93+x4

    X4=120-93=27
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “The Times of sarah's first swim lengths are 27 seconds, 35 seconds, and 31 seconds. in how many seconds must length four be completed so ...” 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