SOLUTION: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrea

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Question 170320: The table shows the balance of a bank account on different days in the month. Find the rate of change during each time interval. During which time interval did the balance decrease at the greatest rate?

Day, 1, 6, 16, 22, 30
balance($), 550, 285, 210, 210, 175
Answer by checkley77(12844) About Me  (Show Source):
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Day 1; 6; 16; 22; 30
balance($) 550; 285; 210; 210; 175
Days 1 to 6:
(550-285)/5=-$53 per day. THE GREATEST DAILY DECREASE.
Days 6 to 16:
(285-210)/10=-75/10=-$7.50 per day.
Days 16 to 22:
(210-210)/6=0/6=$0 per day.
Days 22 to 30:
(210-175)/8=-35/8=-$3.38 per day.