Answer:
D
Step-by-step explanation:
JK intercept line XY at the midpoint. This means that these points are all equidistant from the midpoint. Due to this, J and K are both an equal distance from M. So is X and Y.
Let x = minimum electric rate (Cents/kWh)
Total months in 12 years is 12*12 = 144 m
1st freezer
Total cost over 12 years is
623.95 (cost) + (90 kWh/m)*(144 m)(x/100 $/kWh)
= 623.95 + 129.6x
2nd freezer
Total cost over 12 years is
500 + 100*144*(x/100)
= 500 + 144x
For the 1st freezer to cost less over 12 years,
623.95 + 129.6x < 500 + 144x
123.95 < 14.4x
8.61 < x
Answer: The minimum rate is 8.61 cents per kWh
Answer:
C.
Step-by-step explanation:
Answer:
Step-by-step explanation:
I dont even understand the question
Put the numbers in order
21.0 , 21.6, 22.1, 22.3, 22.7, 23.5, 24.0, 25.5, 26.3, 28.6, 29.2
Q1 = 22.1
Q2 (median) = 23.5
Q3 = 26.3
Interquartile range (IQR) = Q3 - Q1 = 26.3 - 22.1 = 4.2 <===
Variation is a term that is used to describe : (C) how spread out or scattered a data set is