Answer :
Final answer:
Given the daily rate of change in value at -$3.15, it will take 4 days for the total change in the value of the investment to reach -$12.60. This was calculated using the simple formula of total change divided by daily change.
Explanation:
In this given problem, we are asked to find out how many days it took for an investment to depreciate by $12.60, given that the value changes at a rate of -$3.15 each day.
Since the daily rate of change is -$3.15, the number of days can be calculated by dividing the total change ($12.60) by the daily change ($3.15). Using the formula:
Number of Days = Total change / Daily change
Substituting the given values:
Number of Days = $12.60 / $3.15 = 4 days
So, in 4 days, the total change in value would be -$12.60, considering the daily rate of -$3.15. This is a direct application of the concept of rate of change in mathematics.
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