Answer:
a = 20
Step-by-step explanation:
The mean is calculated as
mean =
= =
Then
= 27 ( multiply both sides by 5 to clear the fraction )
115 + a = 135 ( subtract 115 from both sides )
a = 20
Simplify each expression. 16 1/4. 49 1/2. 10001/3-64 1/6
1 answer:
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