Basic Math Examples

19

$19$

22

$22$

22

$22$

22

$22$

24

$24$

24

$24$

26

$26$

28

$28$

28

$28$

30

$30$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

\frac{19 + 22 + 22 + 22 + 24 + 24 + 26 + 28 + 28 + 30}{10}

$\frac{19 + 22 + 22 + 22 + 24 + 24 + 26 + 28 + 28 + 30}{10}$

Step 2

Simplify the numerator.

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Step 2.1

Add

19

$19$ and

22

$22$ .

\frac{41 + 22 + 22 + 24 + 24 + 26 + 28 + 28 + 30}{10}

$\frac{41 + 22 + 22 + 24 + 24 + 26 + 28 + 28 + 30}{10}$

Step 2.2

Add

41

$41$ and

22

$22$ .

\frac{63 + 22 + 24 + 24 + 26 + 28 + 28 + 30}{10}

$\frac{63 + 22 + 24 + 24 + 26 + 28 + 28 + 30}{10}$

Step 2.3

Add

63

$63$ and

22

$22$ .

\frac{85 + 24 + 24 + 26 + 28 + 28 + 30}{10}

$\frac{85 + 24 + 24 + 26 + 28 + 28 + 30}{10}$

Step 2.4

Add

85

$85$ and

24

$24$ .

\frac{109 + 24 + 26 + 28 + 28 + 30}{10}

$\frac{109 + 24 + 26 + 28 + 28 + 30}{10}$

Step 2.5

Add

109

$109$ and

24

$24$ .

\frac{133 + 26 + 28 + 28 + 30}{10}

$\frac{133 + 26 + 28 + 28 + 30}{10}$

Step 2.6

Add

133

$133$ and

26

$26$ .

\frac{159 + 28 + 28 + 30}{10}

$\frac{159 + 28 + 28 + 30}{10}$

Step 2.7

Add

159

$159$ and

28

$28$ .

\frac{187 + 28 + 30}{10}

$\frac{187 + 28 + 30}{10}$

Step 2.8

Add

187

$187$ and

28

$28$ .

\frac{215 + 30}{10}

$\frac{215 + 30}{10}$

Step 2.9

Add

215

$215$ and

30

$30$ .

\frac{245}{10}

$\frac{245}{10}$

\frac{245}{10}

$\frac{245}{10}$

Step 3

Cancel the common factor of

245

$245$ and

10

$10$ .

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Step 3.1

Factor

5

$5$ out of

245

$245$ .

\frac{5 (49)}{10}

$\frac{5 (49)}{10}$

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor

5

$5$ out of

10

$10$ .

\frac{5 \cdot 49}{5 \cdot 2}

$\frac{5 \cdot 49}{5 \cdot 2}$

Step 3.2.2

Cancel the common factor.

$\frac{5 \cdot 49}{5 \cdot 2}$

Step 3.2.3

Rewrite the expression.

$\frac{49}{2}$

Step 4

Divide.

$24.5$