Which algebraic expression shows the average melting points of helium, hydrogen, and neon if h represents the melting point of h
elium, j represents the melting point of hydrogen, and k represents the melting point of neon?
A. h + j + k
B. hjk
c. h+j+k over 3
d. hjk over 3
2 answers:
Answer:
c. h+j+k over 3
Step-by-step explanation:
We know that,

Here, h, j and k represents the melting point of helium, hydrogen and Neon respectively,
Since, the sum of melting points = h + j + k,
Also, the total number of gases = 3,
Thus,

Or (h+j+k) over 3
⇒ Option c is correct.
Average = mean = sum of the values / number of data
Values = h, j, and k
Number of data = 3
Sum of the values = h + j + k
Mean = [h + j + k] / 3
=> Answer: option c. [h+j+k] over 3
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