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Sedaia [141]
3 years ago
10

Mr.Singh had three sheets of stickers. He gave 20 stickers from each sheet of his students and has 12 total stickers left. Write

and solve an equation to find how many stickers were originally on each sheet?
Mathematics
1 answer:
Pavlova-9 [17]3 years ago
4 0
3 sheets =  3sheets\times\frac{20stickers}{sheet}+12left
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Using the Classic Rock data in the Math 108 group on StatCrunch, create a histogram with the
liberstina [14]

The product of the frequency and PlayCount gives the number of songs

played from the information in the histogram.

Correct responses (rounded to the nearest whole integer)

1. 2%

2. 27 PlayCount per song

3. 68%

<h3>How does one analyze an histogram?</h3>

1. The given data from the histogram is presented in a tabular form as follows;

\begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|}f&899&224&126&96&71&52&39&41&44&23&14&12&3&4&3\\x&10&20&30&40&50&60&70&80&90&100&110&120&130&140&150\end{array}\right]

The percentages of song that where played over 100 times is given as follows;

∑f = 899+224+126+96+71+52+39+41+44+23+14+12+3+4+3 = 1651

Number of songs played over 100 times = 14 + 12 + 3 + 4 + 3 = 36

  • Percentage \ of \ songs \ played \ over \ 100 \ times = \mathbf{\dfrac{36}{1,651} \times 100} \approx \underline{2 \%}

2. Mean of a frequency distribution is given as follows;

Mean = \mathbf{\dfrac{\sum f\times x}{\sum f}}

Where;

x = The PlayCount

From MS Excel, we have;

∑f·x = 44410

Which gives;

  • Mean = \dfrac{44410}{1651}   \approx \underline{27}

3. Number of songs played less than 20 times = 899 + 224 = 1,123

  • \mathbf{Percentage} \ of \ songs \ played \ less \ than \ 20 \ times = \dfrac{1,123}{1,651}  \times 100 \approx \underline{ 68 \%}

Learn more about percentages and histograms here:

brainly.com/question/10491646

brainly.com/question/1413492

6 0
2 years ago
Nine more than half of a number is 21
pogonyaev
I assume you're looking for the number:
0.5n + 9 = 21
- 9
0.5n = 12
÷ 0.5
n = 24
So the beginning number is 24, hope this helps!
3 0
3 years ago
Solve the question below
mamaluj [8]

Answer: the scale factor is 2.5

Step-by-step explanation: hope it helps :)

7 0
3 years ago
The sum of the ages of a mother and her son is 63, six years ago the mothers age was twice as old as her son. How old is the mot
Ad libitum [116K]

Answer:

40 years old

Step-by-step explanation:

Let's imagine a+b=63

63-12=51 (since they were both 6 years younger)

A is double B

34+17=51

34/2=17

You need to add the 6 years back onto the mothers age - 34+6=40

40 years old

5 0
2 years ago
2.13 x 10^24 molecules of water is how many moles of water?
pishuonlain [190]

Answer:

1 mole of anything = 6.023 * 10^23

2.13 * 10^24 divided by 6.023 * 10^23 =

3.54 moles

Step-by-step explanation:

5 0
3 years ago
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