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Agata [3.3K]
3 years ago
15

.38×3÷(-0.05)×5÷(-8)

Mathematics
1 answer:
myrzilka [38]3 years ago
3 0

Answer:

14.25

Step-by-step explanation:

.38×3÷0.05×5÷8

1.14÷0.05×5÷8

114÷8

=14.25

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ki77a [65]
The answer to your question is 10 2/5
3 0
3 years ago
The mean hours of sleep that students get per night is 7 hours, the standard deviation of hours of sleep is 1.7 hours, and the d
densk [106]

Answer:

c. 3.6 and 10.4 hrs

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

68% of the measures are within 1 standard deviation of the mean.

95% of the measures are within 2 standard deviations of the mean.

99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean 7, standard deviation 1.7.

For about 95% of students, nightly amount of sleep is between

7 - 2*1.7 = 7 - 3.4 = 3.6 hours

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So the correct answer is:

c. 3.6 and 10.4 hrs

5 0
3 years ago
Jake charges $15 per hour for swim lessons. The cost is per student. Is the amount of money jake makes per hour proportional to
V125BC [204]

Answer:

Hours

Step-by-step explanation:

Jake is being paid $15 an hour, not per child.

Say he has five children, three stay for one hour, two stay for two hours. If he's getting paid per hour, then he'd earn $105. But, if he gets paid per child he'd only make $75 dollars.

But since it says that he gets paid per HOUR, it would be proportional to how much money he makes.

4 0
3 years ago
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iragen [17]

Answer:

Step-by-step explanation:

Ex 1 : B

Ex 2; B

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4 0
3 years ago
The table shows the number of miles each person ran this week who ran more miles by te end of the week How many More?
Tasya [4]
To calculate who ran more, you add up the total miles
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Now subtract to see who ran more
Pat ran 0.5 miles more than Toby.

Hope this helps 
5 0
3 years ago
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