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ANSWER
D. 4 minutes 40 seconds
EXPLANATION
The given data set showing the number of seconds of each song the playlist is:
283,204,198,229,173,230,168,236,215,204
Let the length of the 11th song be x.
Because he wants the mean to be 3 minutes 40 seconds, which is equal to 220 seconds, we write and solve the following equation for x.





We convert 280 seconds to minutes.

The correct choice is D
Answer:
1/25
Step-by-step explanation:
0.04 = 4/100 = 1/25
The answer to this problem is 2/5
Answer:
I don't really understand the question but...
2:18
3:27
4:36
5:45
6: 54
7:63
8:72