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4 years ago

5

Nellie charges $4.25 for the first hour she baby-sits and $2.75 for each additional hour or part of an hour. How much will she e

arn for baby-sitting from 7:15 P.M. until 1:30 A.M.?

1 answer:

Brilliant_brown [7]4 years ago

8 0

Answer:

ok so from 7:15 to 8:15 it cost 4.25

8:15 to 9:15 = 2.75

9:15 to 10:15 = 2.75

10:15 to 11:15 = 2.75

11:15 to 12:15 = 2.75

12:15 to 1:15 = 2.75

1:15 to 1:30 = 1.37

so add 4.25+2.75+2.75+2.75+2.75+2.75+1.37

which equals 19.37

<u>Nellie will earn $19.37 for baby-sitting from 7:15 PM until 1:30 AM</u>

step-by-step explanation:

hope this helps plz mark me as brainiest

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b) $Z=XY$ can be computed in the same way; it has CDF

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3 years ago

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Answer:

95% Confidence interval: (39.43, 61.58)

Step-by-step explanation:

We are given the following in the question:

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