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crimeas [40]
3 years ago
11

A theater company charges $4.50 per ticket for people of all age groups. if c represents the total number of children who bought

tickets and a represents the total number of adults who bought tickets, which expression best represents the total money earned by the company from the sale of tickets
Mathematics
1 answer:
Sonbull [250]3 years ago
6 0
If one child bought a ticket, we would calculate the total cost by multiplying $4.50 by 1.  If two children bought tickets, we could calculate the total cost by multiplying the total cost by 2.  So, the total number of tickets will always be 4.50 * the total number of tickets.

Because the number of children who bought tickets is represented by c and the number of adults who bought tickets are represented by a, our equation should look like:

$4.50c + $4.50a = money earned
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Answer:

The maximum variance is 250.

Step-by-step explanation:

Consider the provided function.

V(x)=1000x(1-x)

V(x)=1000x-1000x^2

Differentiate the above function as shown:

V'(x)=1000-2000x

The double derivative of the provided function is:

V''(x)=-2000

To find maximum variance set first derivative equal to 0.

1000-2000x=0

x=\frac{1}{2}

The double derivative of the function at x=\frac{1}{2} is less than 0.

Therefore, x=\frac{1}{2} is a point of maximum.

Thus the maximum variance is:

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V(x)=250

Hence, the maximum variance is 250.

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Lerok [7]
The angle immediately below x makes up the third angle of the isosceles triangle whose base angles are 55°. That third angle and x are "vertical" angles, hence equal. The value of x can be found from the sum of angles of a triangle:
  x + 55° + 55° = 180°
  x = 70°

The appropriate choice is the 2nd one:
  70°
4 0
2 years ago
Read 2 more answers
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