Finite Math Examples

$5$ , $15$ , $7$ , $7$

Step 1

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

$\frac{5 + 15 + 7 + 7}{4}$

Step 2

Simplify the numerator.

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Step 2.1

Add $5$ and $15$ .

$\frac{20 + 7 + 7}{4}$

Step 2.2

Add $20$ and $7$ .

$\frac{27 + 7}{4}$

Step 2.3

Add $27$ and $7$ .

$\frac{34}{4}$

Step 3

Cancel the common factor of $34$ and $4$ .

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Step 3.1

Factor $2$ out of $34$ .

$\frac{2 (17)}{4}$

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor $2$ out of $4$ .

$\frac{2 \cdot 17}{2 \cdot 2}$

Step 3.2.2

Cancel the common factor.

$\frac{2 \cdot 17}{2 \cdot 2}$

Step 3.2.3

Rewrite the expression.

$\frac{17}{2}$

Step 4

Divide.

$8.5$