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LuckyWell [14K]

3 years ago

9

If you bought 12 cookies (each cookie for 0.99) how much more would each cookie cost than if you bought them by the dozen? ( A d

ozen pack is for 6.55)

1 answer:

iris [78.8K]3 years ago

7 0

6.55 it’s in the question my g

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What is the best way to learn percentage?

juin [17]

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3 years ago

Use the communitive property of addition to rewrite 3 + 5 + 7. Which expression is equivalent?

Leni [432]

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3 years ago

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2 years ago

Question 9 20% of a particular brand of light bulbs fail in one year. What is the probability that three bulbs out of a random c

Delvig [45]

Answer:

The correct answer is 0.15

Step-by-step explanation:

According to the given scenario, the probability is as follows:

X $\sim$ Bin (n,p)

Here

n = 8

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Now this is a binomial probability distribution

$P(X) = ^nC_x \times p^x \tmes (1 - p)^{n-x}\\\\P(3) = ^8C_3 \tims 0.20^3 \times (1 - 0.20)^5$

= 0.15

Hence, the correct answer is 0.15

5 0

3 years ago