Answer
6
Work Step by Step
Evaluate $\frac{a+b}{4}$ where a is twice b and a is 16.
Given the value of a, solve for b.
$a=2b\longrightarrow$ Substitute the value for a.
$16=2b\longrightarrow$ Divide both sides by 2.
$16\div2=2b\div2\longrightarrow$ Solve.
$8=b$
Substitute for a and b in the original equation and solve.
$\frac{a+b}{4}=\frac{16+8}{4}=\frac{24}{4}=6$
