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Nataly [62]
2 years ago
10

The Booster Club voted on

Mathematics
1 answer:
ikadub [295]2 years ago
6 0

Answer:

The number of tickets purchased costing $21 each =   18

The number of tickets purchased costing $ 27 each =   11

Step-by-step explanation:

The total number of tickets purchased = 29

Here, let us assume that:

The number of tickets  purchased costing $21   = m

The number of tickets purchased costing $ 27  = 29 - m

So, now the cost of m tickets costing $21 each = m x ( $21)  = 21 m

Also, the cost of purchasing ( 29-m) tickets costing $27 each

= (29-m)x   $27   = 783  - 27 m

Also, the total cost of purchasing  29 tickets  = $ 675

⇒ The total cost of m tickets  +  (29- m ) tickets  = $ 675

or,  21 m + 783  - 27 m  =  675

⇒  - 6 m  = 675  - 783  =  -108

or, m  108/6 =  18

⇒ m  = 18

Hence the number of tickets purchased costing $21 each = m = 18

The number of tickets purchased costing $ 27 each  = 29 - m

= 29 - 18  =  11

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shepuryov [24]

Answer:

The estimated probability that Ginger will eat a a pizza everyday of the week is;

D. 8/10 = 80%

Step-by-step explanation:

The given parameters are;

The frequency with which Ginger buys launch = Everyday

The percentage of the time the cafeteria has pizza out = 80%

The outcome of 0 and 1 = No pizza available

The outcome of 2, 3, 4, 5, 6, 7, 8, and 9 = Pizza available

Therefore, we have the;

Group number  {}                          Percentage of time pizza available

1                     {}                          80%

2                     {}                          80%

3                     {}                          80%

4                     {}                          80%

5                     {}                          40%

6                     {}                          100%

7                     {}                          80%

8                     {}                          100%

9                     {}                          80%

10                     {}                          80%

Therefore, the sum of the percentages outcome the days Ginger eats pizza = 0.8 + 0.8 + 0.8 + 0.8 + 0.4 + 1 + 0.8 + 1 + 0.8 + 0.8 = 8

The number of runs of simulation = 10 runs

The estimated probability that Ginger will eat a a pizza everyday of the week = (The sum of the percentages outcome the days Ginger eats pizza)/(The number of runs of simulation)

∴ The estimated probability that Ginger will eat a a pizza everyday of the week = 8/10

6 0
3 years ago
Read 2 more answers
I really need help pls?
Gnesinka [82]

Answer:

See Below

Step-by-step explanation:

Ok, this is just like the systems of equations.

x-7 = 5x-31

Solve

x-7 = 5x-31

-x     -x

-7 = 4x -31

+31       +31

24 = 4x

24/ 4   = 4x/ 4

x=6

Hope this helps!=)

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