A mean is an arithmetic average of a set of observations. The correct option is A.
<h3>What is Mean?</h3>
A mean is an arithmetic average of a set of observations. it is given by the formula,
Mean = (Sum of observations)/Number of observations
Since the median is the middle value of the given data set, therefore, the median will not be changed for the given data set. But since the mean is the arithmetic average, therefore, the $100 gift will increase the mean value of the prizes.
Hence, the correct option is A.
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Answer:
x = 8, y = 4
Step-by-step explanation:
x = 3y-4
2x - 8 = 2y
x - 4 = y
x = y + 4
substitute top equation to this equation
3y-4 = y+4
2y = 8
y = 4
now substitute this into second equation
x = y + 4
x = 8
check answer with first equation
x = 3y-4
8 = 3(4) - 4
8 = 8; correct
Answer:
C
Step-by-step explanation:
Answer:
Since the exponent of the scientific notation is negative, move the decimal point 2 places to the left.
0.96
Answer:
-12
Step-by-step explanation:
? + 3 = -9
Subtract 3 from -9
-9 - 3 = -12
? = -12
