Answer:
-24
Step-by-step explanation:
If there were 5 transactions, 5 times the mean amount of the transactions will add up -120. If "x" is the mean amount of the transactions:
5*x = -120
x = -120/5
x = -24
The answer is A (360/53=6.8)
The answer you should put is 9!
Answer:
6
Step-by-step explanation:
Let . We know the formula for the sum of an arithmetic sequence is:
Where n is the number term you are finding the sum up to, a1 is the first term, and an is the nth term. We can substitute what we have:
The formula to find the nth term of an arithmetic series is:
Where d is the common difference. Again, we can plug in what we have;