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Mice21 [21]
3 years ago
11

In a roller-skating rink, the skaters all move at different speeds. Most skate slightly faster or slower than others, but someti

mes an adventuresome skater accelerates to an "outlying" speed that is much higher than that of everyone else, creating a hazard. As a result, skating rinks often post a sign that says:Any skater moving faster than the average speed of all the skaterswill be asked to leave the rink.It is clear what the sign means, but it is statistically nonsensical. If there are 100 skaters in a rink, all skating at slightly varying speeds, what is the best estimate for how many of them are moving faster than the average speed of all the skaters?
Mathematics
1 answer:
Tanzania [10]3 years ago
4 0
Did you ever get the answer? I have pretty much the same exact one but mine said 150 skaters and I don't know how to answer it.
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Andrei [34K]

Answer:

Looks good to me.

Step-by-step explanation:

Looks good to me.

5 0
3 years ago
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The cost of a whole box of chips are $60. I have $48. What percentage of the total cost do I have?
goblinko [34]

Answer:

Percentage of total I have = 80%    

Step-by-step explanation:

Given:

Price of Box = $60

I Have = $48

To Find:

Percentage I have = ?

Solution:

In this question we are just supposed to find out the percentage of the Value we have so

Percentage can be found by the formula

Percentage =\frac{Given Value}{Total}*100%

Now we have the values of all

So putting in the values

Percentage =\frac{48}{60}*100%

                    =\frac{4800}{60}%

                            = 80%

So the Percentage of total cost I have is 80%

Percentage of total = 80%    


4 0
3 years ago
Other ways to write 50897
NARA [144]
Written form: fifty thousand eight hundred ninety-seven.

expanded form: 50000+800+90+7
3 0
3 years ago
Read 2 more answers
0.5x + 4 + 0.9x = x + 5
Law Incorporation [45]

Answer:

x=2.5

Step-by-step explanation:

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3 years ago
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Find the length of a side of a square if its área is 4/25 cm2
USPshnik [31]

Answer:

2/5cm or 0.4cm

Step-by-step explanation:

Area of square = Side^{2}

Thus, Side = \sqrt{Area}

= \sqrt{4/25}

= 2/5 cm = 0.4cm

4 0
3 years ago
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