Basic Math Examples

which of the following equations could be used to solve for the tenth term of the following sequence $15$ , $13$ , $11$ , $9$

Step 1

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

$\frac{15 + 13 + 11 + 9}{4}$

Step 2

Simplify the numerator.

Tap for more steps...

Step 2.1

Add $15$ and $13$ .

$\frac{28 + 11 + 9}{4}$

Step 2.2

Add $28$ and $11$ .

$\frac{39 + 9}{4}$

Step 2.3

Add $39$ and $9$ .

$\frac{48}{4}$

Step 3

Divide $48$ by $4$ .

$12$