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const2013 [10]
3 years ago
11

A motorcycle travels 325 miles at a speed of 50 mph. How much time did it take?

Mathematics
2 answers:
enyata [817]3 years ago
7 0

Answer:

6.5 minutes (390 minutes)

Step-by-step explanation:

If you are traveling at 50 miles per hour, then you divide distance by speed to get the time taken. So 325miles/50mph

Blizzard [7]3 years ago
4 0

Answer:

6 hrs and 30 minutes

Step-by-step explanation:

Because math:

325/50=6.5

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aev [14]

Answer:

Step-by-step explanation:

Yes.

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2 years ago
Read 2 more answers
Suppose that a random sample of 10 adults has a mean score of 62 on a standardized personality test, with a standard deviation o
aniked [119]

Answer:

The 90% confidence interval for the mean score of all takers of this test is between 59.92 and 64.08. The lower end is 59.92, and the upper end is 64.08.

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{4}{\sqrt{10}} = 2.08

The lower end of the interval is the sample mean subtracted by M. So it is 62 - 2.08 = 59.92

The upper end of the interval is the sample mean added to M. So it is 62 + 2.08 = 64.08.

The 90% confidence interval for the mean score of all takers of this test is between 59.92 and 64.08. The lower end is 59.92, and the upper end is 64.08.

5 0
2 years ago
10c + 5 ≤ 45<br> I need the graph<br> pls help
LuckyWell [14K]

Answer:

c<=4

Step-by-step explanation:

4 0
2 years ago
A rectangle has a perimeter of 10 meters. Choose all the possible dimensions of the rectangle. Make as manny a possible
ryzh [129]
Some basic dimensions could be 4x1 and 3x2
3 0
3 years ago
Create an equation to solve for x then solve for x.
Ratling [72]

Answer:

Step-by-step explanation:

In parallelogram adjacent angles are supplementary

∠U +∠V = 180

9x + 15 + 6x + 15 = 180

Combine like terms

9x + 6x + 15 + 15 = 180

          15x + 30 = 180

Subtract 30 from both sides

          15x = 180 - 30

         15x = 150

Divide both sides by 15

            x = 150/15

x = 10

∠U = 9x + 15

      = 9*10 + 15

      = 90 + 15

∠U = 105

∠V = 6x + 15

     = 6*10 + 15

     = 60 + 15

∠V = 75

5 0
3 years ago
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