ANSWERS:
m=4
m=18
j=38
n=5
hope this helps!
Answer:
The profit is maximum when x = 40.
Step-by-step explanation:
Cost function, C = 40 x + 300
Revenue function, R = 80 x - 0.5 x^2
The profit function is
So, the profit is maximum when x = 40 .
- 3 1/2 : 1 3/4 =
= -7/2 : 7/4
= -7/2 x 4/7
= -4/2
= -2
Discriminant = b² - 4ac
Discriminant = (6)² - 4(3)(-2)
Discriminant = 36 - (-24)
Discriminant = 36 + 24
Discriminant = 60
3/2 = 1.5
Let the value of the 1945 coin = x.
Then, the value of the 1950 coin = 1.5x
Together, they are worth $40. This gives us the equation:
x + 1.5x = 40
2.5x = 40
x = 40/2.5
x = 16
1.5x = 1.5 * 16 = 24
Answer: The 1945 coin is worth $16. The 1950 coin is worth $24.