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Evgesh-ka [11]
3 years ago
10

The junior class is selling printed beach towels for a fundraiser. They are selling them for $18

Mathematics
1 answer:
aksik [14]3 years ago
3 0
They need to sell 33, unless you round it up then 34.
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Twice a number divided by 5 gives 4<br><br>simple equations<br><br>​
melomori [17]

Answer:

x=10

Step-by-step explanation:

Let the number = x

∴ 2x/5=4

∴2x=5*4

∴2x=20

∴x=20/2

∴x=10

Hope it helps you!

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3 0
3 years ago
Read 2 more answers
What does standard deviation mean?
Sveta_85 [38]
Standard deviation is: It is a measure of how spread out numbers are. It is the square root of the Variance, and the Variance is the average of the squared differences from the Mean.

For example: To find the standard deviation, you have to add up all the numbers in the data set, then divide by how many numbers there are, and that will get you your answer.

Example,  Say your data set is: 9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4.

The Mean is: 9 + 2 + 5 + 4 + 12 + 7 + 8 + 11 + 9 + 3 + 7 + 4 + 12 + 5 + 4 + 10+ 9 + 6 + 9 + 4. Over 20. That equals: 104 over 20 = 7.

So, the Standard Variance and  Mean is: 7 for this problem.

Hope I helped!

- Debbie
4 0
3 years ago
Solve for x<br><br> 6.78x - 5.2 = 4.33x + 2.15<br><br> HELPPP
Yuri [45]

Answer:

x = 3

Step-by-step explanation:

6.78x - 5.2 = 4.33x + 2.15

6.78x - 4.33x = 5.2 + 2.15

2.45x = 7.35

x = 7.35/2.45

x = 3

Thus, The value of x is 3

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3 0
2 years ago
Plz guys, i really need help
expeople1 [14]

First one is 4^2 or just 16.

Second one is using√ So what you want to do is 2√16

Hope this helps

4 0
3 years ago
May run 6 miles in 54 minutes how long will it take her to run 10 miles ​
GREYUIT [131]

Answer:

90 minutes or an hour and a half

Step-by-step explanation:

You need to find out how many minutes it takes her to run one mile, to do that you devide 54 by 6 and you get 9 minutes. Then you multiply the number of minutes per mile, 9, by 10 and you get 90 minutes.

8 0
2 years ago
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