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damaskus [11]
3 years ago
9

(40 points to the right answer) Matilda is selling hand-painted vases at a craft fair. She will have to pay $200 to rent a booth

at the fair. The cost of the paint and other materials to
create each vase is $5.50. She is going to sell each lvase for $14.00.
The inequality 14n > 200 +5.50n represents the situation in which Matilda makes profit.
Part A. Will Matilda make a profit if she sells
20 necklaces? Explain how you know.
Part B. Write an inequality to show the number of vases, n, the Matilda must sell to make a profit. Show your reasoning
Mathematics
1 answer:
Vlada [557]3 years ago
6 0

Answer:

lol

Step-by-step explanation:

hmmm this is messy

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25% of all who enters a race do not complete. 30 haveentered.
nikklg [1K]

Answer:

The probability that exactly 5 are unable to complete the  race is 0.1047

Step-by-step explanation:

We are given that 25% of all who enters a race do not complete.

30 have entered.

what is the probability that exactly 5 are unable to complete the  race?

So, We will use binomial

Formula : P(X=r) =^nC_r p^r q^{n-r}

p is the probability of success i.e. 25% = 0.25

q is the probability of failure =  1- p  = 1-0.25 = 0.75

We are supposed to find the probability that exactly 5 are unable to complete the  race

n = 30

r = 5

P(X=5) =^{30}C_5 (0.25)^5 (0.75)^{30-5}

P(X=5) =\frac{30!}{5!(30-5)!} \times(0.25)^5 (0.75)^{30-5}

P(X=5) =0.1047

Hence the probability that exactly 5 are unable to complete the  race is 0.1047

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tester [92]

Answer:


Step-by-step explanation:

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3(9) + 15 + 25

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