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OpenStudy (anonymous):
easy medal and fan! please help!! The mean age of 10 people in a room was 16. When Toby walked into the room, the mean age went up to 18. What is Toby's age?
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OpenStudy (anonymous):
9
OpenStudy (anonymous):
9
OpenStudy (anonymous):
2 years old ?
OpenStudy (anonymous):
.....
OpenStudy (anonymous):
9
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OpenStudy (anonymous):
lol 9 isn't an option
OpenStudy (anonymous):
2
OpenStudy (anonymous):
nopeeeeee thats not an option either okie
OpenStudy (anonymous):
what are the options
OpenStudy (anonymous):
18, 20, 22, 34, 38
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OpenStudy (anonymous):
mean is like average right? so its saying that the average age went up because he was older than the other people, im just not sure how to find out how old
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