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4 years ago

Mario travels 180 miles in 2.5 hours of Mario travels at the same right how far can Mario travel in 12.5 hours

Mathematics

2 answers:

vitfil [10]3 years ago

8 0

Answer:

900 miles

Step-by-step explanation:

well if you have 12.5 and you divide it by 2.5 you get 5. I do this because you need to find out how many time 2.5 goes into 12.5 so you can then multiply 180 by that number. 180*5=900

vredina [299]4 years ago

7 0

12.5/2.5=5
5x180= 900

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The standard IQ test is designed so that the mean is 100100 and the standard deviation is 1515 for the population of all adults.

Natalija [7]

Answer:

The sample size should be approximately 151.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 100

Population standard deviation, σ = 15

We have to evaluate the sample size, n.

Alpha, α = 0.10

Confidence interval:

$\mu \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.10} = \pm 1.64$

$100 \pm 1.64(\frac{15}{\sqrt{n}} ) = (98,102)$

$100 \pm 1.64(\displaystyle\frac{15}{\sqrt{n}} ) = (98,102)\\\\1.64(\frac{15}{\sqrt{n}} ) = 2\\\\n = 151.29 \approx 151$

Thus, the sample size should be approximately 151.

6 0

3 years ago

Anyone happen to know the answer?

WINSTONCH [101]

Answer:

6.85 is the answer to this.

Step-by-step explanation:

356*24*60=525,600 minutes in a year

Birth rate

3,600,000/525,600 = 6.85

6 0

3 years ago

what's the slope? simplify your answer and write it as a proper fraction,improper fraction or integer

dybincka [34]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

In this graph, when you count rise and run, rise would be 1 and run would be 2. Because slope is also known as rate of change and rate of change is also known as rise over run, the slope will be 1 over 2.

8 0

3 years ago

if sec theta equals negative 5/3, such that 180° <thata<270° then determine what is tan theta ?

Svetllana [295]

I hope this makes sense, if not please feel free to let me know and I'll explain it.