Question

Evaluate the expression a/2 + 4 when a is 12.

Answer 1

The given expression is :

a/2 + 4

Substitute a = 12

$\begin{gathered} \frac{a}{2}+4 \\ \frac{a}{2}+4=\frac{12}{2}+4 \\ \frac{a}{2}+4=6+4 \\ \frac{a}{2}+4=10 \end{gathered}$

at a = 12, a/2 + 4 = 10

Answer : 10