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2 years ago

A giant tortoise can travel 0.11 miles in 1 hour. At this rate, how long would it take the tortoise to travel 3 miles?

Mathematics

2 answers:

lakkis [162]2 years ago

4 0

Answer:

about 27.27 hours.

Step-by-step explanation:

If it can travel 0.11 miles in 1 hour, we need to divide 3 miles by 0.11 miles to get the number of hours it would take to travel 3 miles. 3/0.11 is 27.27 repeating.

Hope this helps!

Fudgin [204]2 years ago

3 0

Answer:

27.27 hours

Step-by-step explanation:

You need to set up a proportion. I did distance over time.

$\frac{.11 mi }{1 hr} = \frac{3 mi}{x hr}$

Cross multiply

.11x = 3

Divide by .11

x = 27.27

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3 years ago

From a random sample of 58 businesses, it is found that the mean time the owner spends on administrative issues each week is 21.

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Step-by-step explanation:

Formula to find the confidence interval for population mean :-

$\overline{x}\pm z^*\dfrac{\sigma}{\sqrt{n}}$

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n= sample size.

$\sigma$ = Population standard deviation.

By considering the given question , we have

$\overline{x}= 21.69$

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Using z-table, the critical z-value for 95% confidence = z* = 1.96

Then, 95% confidence interval for the amount of time spent on administrative issues will be :

$21.69\pm (1.96)\dfrac{3.23}{\sqrt{58}}$

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3 years ago

4. Seven times the difference of a number k and five is twenty-onel

laila [671]

Answer:

k = 8

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Hope this helps!

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3 years ago