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Korvikt [17]
3 years ago
8

Tina left for school at 8:35 a.m. and she got back home at 3:45 p.m. How long was

Mathematics
2 answers:
Marina86 [1]3 years ago
5 0

Answer:

7 hours with 10 minutes

Step-by-step explanation:

First, find how much minutes it takes to get to 9 a.m, which is 25 minutes.

Then, count up to 3 p.m, which is 6 hours.

Then, add the 45 minutes to 25, which will give you 70, but since you have more than 60 minutes, convert those 60 minutes to an hour adding that up to 7 hours and ten minutes.

a_sh-v [17]3 years ago
3 0

Answer:

430 minutes or 7 hours and 10 minutes

Step-by-step explanation:

From 8:35 am to 9 am is 25 minutes. There are 60 minutes in an hour and 9 am to 3 pm is 6 hours. 3:00 to 3:45 pm is an additional 45 minutes.

60 minutes x 6 hours = 360 minutes

360 + 25 + 45 = 430 minutes

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3 years ago
Need help ASAP ! Questions are in the pic
Vedmedyk [2.9K]

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2 years ago
Is (-2,-6) a solution of y < 7x + 8?​
mojhsa [17]

Answer:

not a solution

Step-by-step explanation:

y < 7x + 8

Substitute (2-,-6) into the inequality

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3 years ago
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Using radicals , write an equivalent expression for the expression 2 1/3
liq [111]
I'm assuming that the 1/3 is an exponent.

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5 0
3 years ago
A random sample is taken and the sample size is 25. the sample is normally distributed, the sample mean is 80, and the standard
torisob [31]

The 90% confidence interval for the population mean is 78.1905<x<81.8095

<h3>Confidence interval</h3>

The formula for calculating the confidence interval is expressed as:

CI = x ± z*s/√n

Given the following parameters

mean "x" = 80

z = 1.645

s = 5.5

n = 25

Substitute

CI = 80 ± 1.645*5.5/√25

CI = 80 ± 1.8095

CI = {78.1905, 81.8095}

Hence the 90% confidence interval for the population mean is 78.1905<x<81.8095

Learn more on confidence interval here: brainly.com/question/2141785

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