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love history [14]
3 years ago
13

Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance ticket and one sam

e-day ticket is $55. For one performance, 20 advance tickets and 35 same-day tickets were sold. The total amount paid for the tickets was $1700. What was the price of each kind of ticket?
Mathematics
1 answer:
Serga [27]3 years ago
7 0

Answer:

Price of advance ticket: 15$

Price of same-day ticket: $40

Step-by-step explanation:

Let y be the price of one advance ticket and x the cost of one same day ticket.  

We know that the combined cost of one advance ticket and one same-day ticket is $55, so

y+x=55 equation (1)

We also know that 20 advance tickets and 35 same-day tickets cost $1700, so

20y+35x=1700 equation (2)

Now, let's solve our system of equations step-by-step:

step 1. Solve for x in equation (1)

y+x=55

x=55-y equation (3)

step 2. Replace equation (3) in equation (2)

20y+35x=1700

20y+35(55-y)=1700

20y+1925-35y=1700

-15y=-225

y=\frac{-255}{-15}

y=15 equation (4)

step 3. Replace equation (4) in equation (3)

x=55-y

x=55-15

x=40

We can conclude that the price of one advance ticket is $15 and the price of one same-day ticket is $40.

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A basketball player makes 70% of his free throws the random numbers below represent 20 trials for a simulation let the numbers 0
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Answer:

40%

Step-by-step explanation:

Given the result of the simulation below:

(5,5) (0,6) (9,6) (7,4) (9,1) (7,3) (0,4) (9,3) (2,9) (1,4)

(6,8) (5,3) (1,7) (1,7) (1,8) (3,5) (7,2) (2,1) (0,6) (1,8)

n(S)=20

  • The numbers 0 to 6 represent a made free throw .
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  • Therefore, any result containing 7 to 9 does not satisfy our requirement that the player makes both throws.

Let Event A be the event that the player made both throws

The pairs in which the player made both throws are:

(5,5) (0,6) (0,4) (1,4) (5,3)  (3,5)  (2,1) (0,6)

n(A)=8

Therefore:

P(A)=\frac{n(A)}{n(S)}=\frac{8}{20}=0.4\\

The probability that the player made both throws is 40%.

6 0
3 years ago
Read 2 more answers
The school that Lisa goes to is selling tickets to the annual talent show. On the first day of ticket sales the school sold 4 se
kakasveta [241]
Let:
x = cost of senior citizen ticket
y = cost of student ticket

4x + 5y = 102
7x + 5y = 126

4x + 5y = 102
4x = 102 - 5y
x = (102 - 5y)/4
x = 102/4 - 5y/4

7x + 5y = 126
7(102/4 - 5y/4) + 5y = 126
(714/4 - 35y/4) + 5y = 126
-35y/4 + 5y = 126 - 714/4

note:
-35y/4 = -8.75y
714/4 = 178.5

-8.75y + 5y = 126 - 178.5
-3.75y = -52.5
y = -52.5/-3.75
y = 14


x = 102/4 - 5y/4
x = 102/4 - 5(14)/4
x = 8

x = cost of senior citizen ticket = $8/ea
y = cost of student ticket = $14/ea



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a. x = 30° (180-70-80)

b. <FGA = 80°

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