Ask Question
15 July, 16:20

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

+5
Answers (1)
  1. 15 July, 16:53
    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?
Get 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 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