Advertising. A retail store estimates that weekly sales s and weekly advertising costs x (both in dollars) are related by s = 60 , 000 − 40 , 000 e − 0.0005 x The current weekly advertising costs are $2,000, and these costs are increasing at the rate of $300 per week. Find the current, rate of change of sales.
Advertising. A retail store estimates that weekly sales s and weekly advertising costs x (both in dollars) are related by s = 60 , 000 − 40 , 000 e − 0.0005 x The current weekly advertising costs are $2,000, and these costs are increasing at the rate of $300 per week. Find the current, rate of change of sales.
Advertising. A retail store estimates that weekly sales s and weekly advertising costs x (both in dollars) are related by
s
=
60
,
000
−
40
,
000
e
−
0.0005
x
The current weekly advertising costs are $2,000, and these costs are increasing at the rate of $300 per week. Find the current, rate of change of sales.
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