Finite Math Examples

$45$ , $30$ , $15$ , $0$

Step 1

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

$\frac{45 + 30 + 15 + 0}{4}$

Step 2

Simplify the numerator.

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Step 2.1

Add $45 + 30 + 15$ and $0$ .

$\frac{45 + 30 + 15}{4}$

Step 2.2

Add $45$ and $30$ .

$\frac{75 + 15}{4}$

Step 2.3

Add $75$ and $15$ .

$\frac{90}{4}$

Step 3

Cancel the common factor of $90$ and $4$ .

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Step 3.1

Factor $2$ out of $90$ .

$\frac{2 (45)}{4}$

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor $2$ out of $4$ .

$\frac{2 \cdot 45}{2 \cdot 2}$

Step 3.2.2

Cancel the common factor.

$\frac{2 \cdot 45}{2 \cdot 2}$

Step 3.2.3

Rewrite the expression.

$\frac{45}{2}$

Step 4

Divide.

$22.5$