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Dennis_Churaev [7]
3 years ago
14

X + |5| = 7 I Don't know how to solve this

Mathematics
1 answer:
max2010maxim [7]3 years ago
4 0

Step-by-step explanation:

x+5=|7

-5 | -5

----------------

x =2

this ^ is how I usually do it

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Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours. What is the mean absolute deviati
Irina-Kira [14]

The mean absolute deviation for the number of hours students practiced the violin is 6.4.

<h3>What is the mean absolute deviation?</h3>

The average absolute deviation of the collected data set is the average of absolute deviations from a center point of the data set.

Given

Students reported practicing violin during the last semester for 45, 38, 52, 58, and 42 hours.

The given data set is;

45, 38, 52, 58, 42

Mean Deviation = Σ|x − μ|/N.

μ = mean, and N = total number of values

|x − μ| = |45 − 47| = 2

|38− 47| = 9

|52− 47| = 5

|58− 47| = 11

|42− 47| = 5

The mean absolute deviation for the number of hours students practiced the violin is;

\rm Mean =\dfrac{2+9+5+11+5}{5}\\\\Mean=\dfrac{32}{5}\\\\Mean = 6.4

Hence, the mean absolute deviation for the number of hours students practiced the violin is 6.4.

To know more about mean value click the link given below.

brainly.com/question/5003198

8 0
2 years ago
What does it mean to “solve for a variable”?
madam [21]

Answer:

it means to find the undefined number

we should solve for the variable to find the answer to the equation

we solve for the variable by using the elimination method

Step-by-step explanation:

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3 years ago
Teesha is in the French club. There are 29 students in the club. The French teacher will pick two students at random to guide vi
Makovka662 [10]
Probability of event A ( Tesha will not be picked as a guide ) :
P ( A ) = Number of ways it can happen / Total number of outcomes
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The probability that Tesha will not be picked as a guide is 0.93 or 93 %. 
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2 years ago
iris has 120 songs on her playlist each week she downloads 4 new songs. write an expression to show the total number of songs on
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Answer:

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3 years ago
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