i need help with this one Eight cookies cost $12. At this rate, how much will 10 cookies cost? soory i didnt see the answer

Mathematics

1 answer:

WARRIOR [948]3 years ago

3 0

Answer: $15

Step-by-step explanation:

8 cookies cost $12 you divide 12 by 8 and then you get 1.5 which equals 1.50 so each cookie is 1.50. So for 10 cookies you multiply 10 times 1.50 and you get your answer $15. 10 cookies cost $15

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The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard devia

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z-score of a company is 5.

What is z- test?

A z-test is a statistical test used to determine whether two population means are different when the variances are known and the sample size is large.

The annual salaries of all employees at a financial company are normally distributed with a mean of $34,000 and a standard deviation of $4,000.

Now, using z- score

z= (x- $\mu$ )/ $\sigma$