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aalyn [17]
3 years ago
13

If three adults and two children go to the movies, it costs $33.50. If one adult and four children go to the movies, it costs $3

0.50. What is the cost of one adult movie ticket?
$5.80
$6.40
$7.30
Mathematics
1 answer:
wariber [46]3 years ago
4 0

Answer:

  $7.30

Step-by-step explanation:

The problem statement gives rise to two equations:

  • 3a +2c = 33.50
  • 1a +4c = 30.50

If we double the first equation and subtract the second, we have ...

  2(3a +2c) -(1a +4c) = 2(33.50) -(30.50)

  5a = 36.50 . . . . simplify

  a = 7.30 . . . . . . .divide by 5

The cost of one adult ticket is $7.30.

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Given: BC bisects DBE. Prove: ABD is congruent to ABE
Arada [10]

Answer:

See below

Step-by-step explanation:

BC bisects <DBE and if AC is a straight line then you have that:

<ABD + <DBC = 180 (straight angle because of line AC)

<ABE + <CBE = 180 ( straight angle because of line AC)

Because BC bisects <DBE =>   < DBC = <CBE

So <ABD and <ABE must be the same to both sum 180 when added < DBC

7 0
3 years ago
Given the weekly demand curve of a local wine producer is p= 50-0.1q, and that the total cost function is c= 1500+ 10q, where q
Mamont248 [21]

Answer:

Step-by-step explanation:

From the given information:

a) To express the weekly profit as a function of price

Cost =C(q) = 1500 + 10q

Revenue = p×q = (50 − 0.1q)×q = 50q - 0.1q²

Revenue = 50q - 0.1q²

Weekly profit = Revenue - Cost

P(q) = (50q -0.1q²) - (1500 + 10q)

P(q)= -0.1 q² + 40 q - 1500  

However, q = 500 - 10 p using p = 50 − 0.1q

P= -0.1 (500 - 10 p)² + 40 (500 - 10 p) - 1500

P= -10 p² + 600 p - 6500

b)

The price at which the bottle of the wine must be sold to realise a maximum profit can be determined by finding the derivative and then set it to 0  

P' = 0

= -20p+600 = 0

20p = 600

p = 600/20

p = $30

c)

The maximum profit that can be made by the producer is:

P= -10(30)² + 600(30) - 6500

P = - 9000 + 18000 - 6500

P = $2500

5 0
3 years ago
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Answer:

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Step-by-step explanation:

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mina [271]

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Step-by-step explanation:

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Nataly [62]

Answer:

x = 17

Step-by-step explanation:

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