Answer:
i dont understan the method you gave me can youbplease ask again showing a different method
Answer:
x= 5
Step-by-step explanation:
Your teacher should have explained it but give me points please
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.
Answer:
530 grams
Step-by-step explanation:
970 grams = 0.970 kg
1 kg = 1000 grams
Thus: 500+30 = 530 grams
Answer:
4,200
Step-by-step explanation: