Chapter 11, Problem 8GRFC

y

To determine

To evaluate: The given expression.

Answer to Problem 8GRFC

  $\frac{1}{2}(a+bd)=\mathrm{69.5.}$

Explanation of Solution

Given information:

The expression is given by, $\frac{1}{2}(a+bd)$ and $a=9,b=10$ and $d=13$

Calculation:

The given expression $\frac{1}{2}(a+bd)$

Substituting the values,

  $\begin{array}{l}\frac{1}{2}(a+bd)=\frac{1}{2}(9+10\times 13)\\ \frac{1}{2}(a+bd)=\frac{1}{2}(9+130)=\frac{1}{2}(130)\end{array}$

  $\frac{1}{2}(a+bd)=\mathrm{69.5.}$