S=50x-x^2
dS/dx=50-2x
d2S/dx2=-2
Since acceleration is a constant negative, when velocity equals zero, it is at the absolute maximum point for S(x)...
dS/dx=0 only when 50-2x=0, 2x=50, x=25
So the price that will maximize income is $25.00 a seat.
And that maximum income is:
S(25)=50x-x^2
S(25)=$625.00
Let x represent the amount of cider delivered to the second store.
(1.2x -90*2.5) - (x -80*2.5) = 65 . . . . . problem statement as equation
0.2x -25 = 65
.. x = 90/0.2 = 450
1.2*450 = 540 liters were delivered to the first store;
450 liters were delivered to the second store.
_____
The first store sold 225 liters in 2.5 hours; the second store sold 200 liters in 2.5 hours. The first store started with 90 liters more, sold 25 liters more, and ended with 65 liters more than the second store.
519/6=86.5
915/7=130.7142
439/7=62.7142
812/9=90.2222
so i think its the 1st on but i may be wrong.
French silk cheesecakes are $9
Chocolate marble cheesecake are $14
Work:
Answer:
1. AC = 11
2. CD = 5
3. AD = 15
4. CD = 6
Step-by-step explanation:
hope that will help you
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