Answer:
9.6666...
Step-by-step explanation:
9.6666... is an irrational number because it repeats itself and does not end.
98.86-85.15= 13.71 This is the answer to the problem. It's really easy. U just subtract and that's it.
Answer:
The total cost for Imani books is $675.
Step-by-step explanation:
Given : Imani brought books for college and paid 35% of the total cost her parents paid the remaining balance of 438.75
To find : What was the total cost for Imani books ?
Solution :
Let x be the total cost of the books.
As she paid 35% of the total cost.
i.e. 
Now, the total cost of the book is given by,
Remaining balance= 65% of total cost
i.e. 
Therefore, the total cost for Imani books is $675.
Answer:
Step-by-step explanation:
If the profit realized by the company is modelled by the equation
P (x) = −0.5x² + 120x + 2000, marginal profit occurs at dP/dx = 0
dP/dx = -x+120
P'(x) = -x+120
Company's marginal profit at the $100,000 advertising level will be expressed as;
P '(100) = -100+120
P'(100) = 20
Marginal profit at the $100,000 advertising level is $20,000
Company's marginal profit at the $140,000 advertising level will be expressed as;
P '(140) = -140+120
P'(140) = -20
Marginal profit at the $140,000 advertising level is $-20,000
<u>Based on the marginal profit at both advertising level, I will recommend the advertising expenditure when profit between $0 and $119 is made. At any marginal profit from $120 and above, it is not advisable for the company to advertise because they will fall into a negative marginal profit which is invariably a loss.</u>
