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bonufazy [111]
3 years ago
15

Find the mean for the given set of data.

Mathematics
2 answers:
Varvara68 [4.7K]3 years ago
5 0
C. 20. When you add them all up and divide by seven, you get 20

ASHA 777 [7]3 years ago
4 0

Answer:

Option c - 20          

Step-by-step explanation:

Given : The set of data

18, 15, 22, 18, 25, 19, 23

To find: The mean of the data?

Solution :

Mean is defined as the sum of the number of observation by total number of observation.

M=\frac{\sum x_n}{n}

M=\frac{18+15+22+18+25+19+23}{7}

M=\frac{140}{7}

M=20

Therefore, The mean of the data is 20.

So, Option c is correct.

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A carpenter goes through 3.4 boxes of nails
jeka57 [31]

4.5 boxes of nails are required for finishing 2 tables

Step-by-step explanation:

Given:

3.4 boxes of nails  are required for finishing 1.5 tables

Required:

How much boxes of nails would he use  for finishing 2 tables

Solution:

We can solve using Unitary Method:

Nails needed to finish 1.5 tables = 3.4 boxes

Nails needed to finish 1 table = \frac{3.4}{1.5}\,\,boxes

Nails needed to finish 2 tables = \frac{3.4}{1.5}*2 =4.5\,\,boxes

So, 4.5 boxes of nails are required for finishing 2 tables.

Keywords: Word Problems

Learn more about Word Problems at:

  • brainly.com/question/11007026
  • brainly.com/question/10978510
  • brainly.com/question/10717746

#learnwithBrainly

4 0
3 years ago
Cami goes scuba diving. She descends 18 feet in 3 minutes. Which expressions represent the average rate at which Cami’s position
julsineya [31]

Answer:

6 ft/min

Step-by-step explanation:

Theres a neat trick to note; whenever you say per think of it as a fancy word for divide, because the label is always gonna be a/b (a per b)

Therefore,

the rate of feet per minute will be the feet divided by the minutes;

18 feet in 3 minutes = <u>18</u>/3 <u>ft</u>/min

Therefore the rate is 6 feet per minute.

<u>IF you need an explanation on what average rate implies:</u>

<em>Note; the word average is not prudent to answer as its extraneous, however if there was more data like "Cami descends 18 ft in 3 min and Nami descends 9 ft in 3 minutes; whats the average rate at which they descend" then you'd have to add the two rates up and divide by two.</em>

Hope this helps :)

7 0
3 years ago
Three of the choices are ways to express 0.50. Which is NOT?
borishaifa [10]

Answer:

5/100

Step-by-step explanation:

5 over 100 is 5%, while the other options are 50%

5 0
3 years ago
The ratio of boys to girls in Mrs. Ronilo's math class is 3 to 2. What percent of the class is boys?
maksim [4K]
60% please make me as the most brainlyest
5 0
3 years ago
Read 2 more answers
Popcorn kernels pop independently (i.e. unimolecularly). For one brand at constant temperature, 5 kernels pop in 10 seconds when
Vsevolod [243]

Answer:

shshush

Step-by-step explanation:

shush

5 0
3 years ago
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