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Arlecino [84]
3 years ago
6

What is the value of x (81) (7x+15)

Mathematics
1 answer:
scoray [572]3 years ago
3 0

Answer:

9 if I am correct also I rounded to a whole number, am not sure

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A car rental agency rents 190 cars per day at a rate of 29 dollars per day. for each 1 dollar increase in the daily rate, 5 fewe
Leviafan [203]

The equation that we can create from this situation is:

i = (190 – 5 x) * (29 + x)

where i is the income and x is the increase in daily rate

Expanding the equation:

i = 5510 + 190x – 145x - 5x^2

i = -5x^2 + 45x + 5510

Taking the 1st derivative:

di/dx = -10x +45

Set to zero to get the maxima:

-10x + 45 = 0

x = 4.5

 

So the cars should be rented at:

29 + x = 33.5 dollars per day

 

The maximum income is:

i = (190 – 5*4.5) * (33.5)

i = 5,611.25 dollars

7 0
3 years ago
Need help I dont understand hep please
Travka [436]
The formulas
are on the picture

5 0
3 years ago
I really need help on this please
hammer [34]
The answer is letter A
7 0
3 years ago
Pls help with this someone i'm struggling with this!
AfilCa [17]

Answer:

x=9

Step-by-step explanation:

Remove the radical by raising each side to the index of the radical.

5 0
3 years ago
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Here are six numbers-4, -2, -1, 5, 6, 8Arrange the card into three pairs with the same total
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ANSWER 8-4   5-1     6-2

Step-by-step explanation:

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