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The mean of a set of five numbers is 4.8. Given that the sixth number is x and the mean of these six numbers is 5.5, find the value of x.
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The mean of a set of five numbers is 4.8. Given that the sixth number is x and the mean of these six numbers is 5.5, find the value of x.
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Oct 17, 2019
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The mean of a set of five numbers is 4.8. Given that the sixth number is x and the mean of these six numbers is 5.5, find the value of x.
Mathematics
high-school
Maulana Prambadi
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Maulana Prambadi
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Given that the mean of the five numbers is 4.8, the total of the numbers will be:
5×4.8
=24
after adding x, the total will be:
(24+x)
the mean will be:
(24+x)/6=5.5
solving for x we get:
24+x=33
hence
x=33-24
x=9
The sixth number is 9
JKJKJK
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Oct 21, 2019
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JKJKJK
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