Johnny’s electric bill is a variable expense. What is the average amount he pays for electricity if he paid $235 in December, $1
2 answers:
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The right answer is 19.9
Step-by-step explanation:
Given data set is;
(18, 23, 17, 25, 15, 18, 18, 16, 27, 25, 18, 19)
Sum of terms = 18+23+17+25+15+18+18+16+27+25+18+19 = 239
Number of terms in data set = 12
Average =
Average =
Average = 19.91
The average of data set is 19.91
The right answer is 19.9
Keywords: average, addition
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Answer:
B) identity property of addition.
Step-by-step explanation:
Given:
The statement given is:
Here, we observe that 10 is added to a giving the number 10 itself as the answer. So, we know of a property which says that when 0 is added to a number, the result is the number itself. This property is called identity property of addition.
So, the value of must be 0 because on adding
to 10, we are getting the number 10 only. So, the above statement is an example of identity property of addition.