Answer:
Myra: 24.8s (winner) Byron: 26.3s
Step-by-step explanation:
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Combine like terms

Add 1 and subtract 6x from each side
0 = 12
The equation has no real solution
Answer:
there are 3 adults and 8 children
Step-by-step explanation:
8*3 (3=Adults)=$24
5*8 (8 children)=$40
24+40=$64
Using it's concept, the standard deviation for the given data-set is of 8.22.
<h3>What are the mean and the standard deviation of a data-set?</h3>
- The mean of a data-set is given by the <u>sum of all values in the data-set, divided by the number of values</u>.
- The standard deviation of a data-set is given by the square root of the <u>sum of the differences squared between each observation and the mean, divided by the number of values</u>.
The mean for this problem is:
M = (17 + 26 + 28 + 9 + 30 + 29 + 6 + 21 + 23)/9 = 21
Hence the standard deviation is:

More can be learned about the standard deviation of a data-set at brainly.com/question/12180602
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Answer
Step-by-step explanation:
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