Question

Timothy recorded the monthly change in his savings account balance, in dollars, for 8 months. Month January February March April May June July August Balance Change (dollars) −30 ​ −15 ​ 55 40 ​ −20 ​ ​ −45 ​ ​ −10 ​ 65 What is the average monthly change in Timothy's savings account balance? Enter your answer in the box.

Answer 1

5

Explanation:

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Answer 2

To find the average, we'll sum up all the monthly changes and divide it by the number of months. Summing all the numbers, we get –30 + (–15) + 55 + 40 + (-20) + (-45) + (-10) + 65 = 40.
The number of months is 8. So dividing it by 8, we get
40/8 = 5

So the average monthly change in Timothy's savings account balance is $5.