Jack is 20 miles due north of Edward. Sarah is due east of Edward. The angle between the direction of the shortest distance from
Sarah to Jack and due east is 25°. To the nearest mile, how far is Sarah from each man?
1 answer:
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Answer:15
Step-by-step explanation:
Given
Craftsman sell 10 Jewelry set for $500 each
For each additional set he will decrease the price by $ 25
Suppose he sells n set over 10 set
Earning
Earning
differentiate to get the maximum value
Equate to get maximum value
Thus must sell 5 extra set to maximize its earnings.
