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denis23 [38]
3 years ago
12

The entry fee to the fair is $4.00. Each ride requires a ticket that cost $0.50. Heidi spent a total of $12.00. How many ticket

did Heidi purchase?
Mathematics
2 answers:
BartSMP [9]3 years ago
8 0
Heidi purchased 16 tickets
hjlf3 years ago
5 0

Answer:

16 tickets

Step-by-step explanation:

The entry fee ($4) is to be subtracted from the total that Heidi spent ($12).  This leads to $8 left for spending on tickets.


Let the number of tickets Heidi purchased be x.  Then:

$8.00 = ($.50/ticket)x.

Dividing both sides by $0.50,we get 16.

Heidi bought 16 ride tickets.

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Answer: 0.6767

Step-by-step explanation:

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The formula to calculate the Poisson distribution is given by :_

P(X=x)=\dfrac{e^{-\lambda}\lambda^x}{x!}

Now, the probability that a randomly selected page does not need to be retyped is given by :-

P(X\leq2)=P(0)+P(1)+P(2)\\\\=(\dfrac{e^{-2}2^0}{0!}+\dfrac{e^{-2}2^1}{1!}+\dfrac{e^{-2}2^2}{2!})\\\\=0.135335283237+0.270670566473+0.270670566473\\\\=0.676676416183\approx0.6767

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Answer:

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