Joan starts a new coffee shop. The table below shows the coffee sales at his shop for the first 5 days.
DAY COFFEE SALES
1 $180.00
2 $ 220.00
3 $ 240.00
4 $ 280.00
5 $ 310.00
What is the average rate of change in the sales per day between the 2nd and 5th day?
To find the average rate of change in the sales per day between the 2nd and 5th day, we need to calculate the total change in sales and divide it by the number of days.
Total change in sales = $310.00 (sales on the 5th day) - $220.00 (sales on the 2nd day) = $90.00
Number of days = 5 (5th day) - 2 (2nd day) = 3 days
Average rate of change = Total change in sales / Number of days
Average rate of change = $90.00 / 3 days = $30.00 per day
Therefore, the average rate of change in the sales per day between the 2nd and 5th day is $30.00.